Reference

Industry terms and definitions

Industrial terms: manufacturing and automation, additive manufacturing, metals and materials processing, oil refining and petrochemicals, fertilizers, chemicals and industrial gases, power generation and nuclear, ports and logistics, and industrial strategy and trade. These are general reference definitions, not tied to any one report.

249 terms · Updated 21 Oct 2026

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4E basis (4E): A reporting basis for platinum-group metal output that counts platinum, palladium, rhodium and gold together.
10 CFR Part 53 (Part 53): The NRC's risk-informed, technology-inclusive licensing rule for advanced reactors, finalized in 2026. It is an optional path alongside the older Parts 50 and 52.

A

Additive manufacturing (AM, 3D printing, 3D-printed): Building parts layer by layer from a digital model, instead of cutting them from solid stock. It allows complex shapes and part consolidation but is slower and costlier per part than mass production.
Air separation unit (ASU, cryogenic air separation): A plant that cools air until it liquefies and separates it into oxygen, nitrogen and argon by distillation.
Allam cycle (Allam-Fetvedt cycle, oxy-combustion cycle): A power cycle that burns natural gas with pure oxygen in supercritical CO₂, producing pipeline-ready CO₂ and almost no other emissions.
Alumina (aluminum oxide, Al₂O₃): Aluminum oxide (Al₂O₃), the white powder refined from bauxite that is fed to aluminum smelters. About 2 t of alumina make 1 t of aluminum.
America Makes: The US national additive manufacturing innovation institute, part of the Manufacturing USA network, which funds shared research with industry and government.
Ammonia: grey, blue and greenIn Sustainability: Ammonia (NH₃) is the base of nearly all synthetic nitrogen fertilizer, made by combining hydrogen with nitrogen from the air in the Haber-Bosch process. The color follows the hydrogen: grey ammonia uses hydrogen from unabated natural gas; blue ammonia captures and stores the CO₂ from that step; green ammonia uses hydrogen from electrolysis on renewable power.
Ammonium nitrate (calcium ammonium nitrate): A nitrogen fertilizer, also used in mining explosives. It can detonate if contaminated or heated in bulk, so storage is tightly regulated.
Anode effect: A disturbance in an aluminum cell, when alumina runs low, that sharply raises voltage and releases perfluorocarbon gases.
Antidumping and countervailing duties (antidumping duty, anti-dumping duty, countervailing duty, AD/CVD): Extra import duties that offset goods sold below fair value (antidumping) or supported by foreign subsidies (countervailing). They are set product by product after investigations.
Antimony trioxide (Sb₂O₃): The main industrial antimony compound, used chiefly with halogenated chemicals as a flame-retardant booster in plastics and textiles, and as a catalyst for PET plastic.
AS9100In Aerospace: The aerospace and defense quality management standard, built on ISO 9001 with added requirements. Most aerospace buyers require suppliers to be certified to it.
ATEX (ATEX directive)In Computing: The EU rules for equipment and workplaces in explosive atmospheres. Sensors used in such areas must be certified to them.
Autocatalyst (catalytic converter, three-way catalyst, diesel oxidation catalyst): A catalytic converter in vehicle exhaust that uses platinum-group metals to turn pollutants into less harmful gases. Three-way catalysts treat gasoline exhaust; oxidation catalysts treat diesel exhaust.
Autonomous mobile robot (AMR, automated guided vehicle, AGV, AGVs): A wheeled robot that navigates a factory or warehouse on its own using sensors and maps. Automated guided vehicles do the same along fixed routes marked by wires, tape or beacons.

B

Backward and forward integration (backward integration, forward integration): Backward integration takes over supply steps, such as a carmaker making its own batteries. Forward integration takes over steps toward the customer, such as a miner making finished magnets.
Barrels per day (bpd, b/d, bbl/d, bbl): The standard unit of refinery capacity and oil production. One barrel is ≈159 litres.
Baseload and dispatchable power (baseload, dispatchable, firm power): Baseload power runs steadily around the clock; dispatchable power can be turned up or down when needed. Both are prized against weather-dependent wind and solar.
Bill of materials (BOM)In Batteries: The list and cost of every material and part in a product. In batteries the cathode, anode, electrolyte, separator and foils make up most of it.
Binder jetting (BJT): An additive process that glues powder layers together with a liquid binder, then sinters the part in a furnace. It is fast and cheap but parts shrink during sintering.
Black start (black-start capability): Restarting a power plant, or the grid, without power from outside after a total blackout. Plants with this ability are valued for grid recovery.

C

CAD, CAM and CAE (CAD, CAM, CAE, computer-aided design, computer-aided manufacturing, computer-aided engineering): The main engineering software types. Computer-aided design creates the part model; computer-aided manufacturing turns it into machine instructions; computer-aided engineering simulates its behavior.
Capacity factorIn Batteries: A plant's actual output over a period divided by what it would produce running at full power the whole time. Solar typically reaches ≈10–25%; storage owners use it to describe utilization.
Capacity utilization (utilization rate, utilisation)In Batteries: Actual output divided by nameplate capacity. Low utilization across an industry signals overcapacity and price pressure.
Carbon anode (prebaked anode, consumable anode): The block of baked carbon that carries current into an aluminum cell and is consumed as it reacts with oxygen, producing CO₂. Anodes must be replaced every few weeks.
Carbon Border Adjustment Mechanism (CBAM): The EU charge on the carbon in imported cement, iron and steel, aluminum, fertilizers, electricity and hydrogen. Its definitive period began on 1 January 2026 and certificate sales start in February 2027. Importers of under 50 tonnes a year are exempt, except for electricity and hydrogen.
Carbon capture and storage (CCS)In Sustainability: Separating CO₂ from an industrial stream and injecting it into deep geological formations for permanent storage. Captured fossil CO₂ lowers emissions but does not remove carbon from the atmosphere.
Carburization: Absorption of carbon into a metal surface at high temperature, which can harden it on purpose or embrittle it in service.
Changeover (setup reduction, setup time): Switching a machine or line from one product to another, including retooling, reprogramming and checking the first parts. Shorter changeovers make small batches economic.
Chemical mechanical planarization (CMP, CMP slurry, chemical mechanical polishing): Polishing a wafer flat with a chemical slurry and a rotating pad between chip-making steps.
Class VI well (Class VI permit, Class VI injection well): The US Environmental Protection Agency permit class for wells that inject CO₂ underground for long-term storage.
CNC controller (machine tool controller): The computer that drives a machine tool's motors from the part program. A few vendors supply most of the world's controllers, which makes them a supply-chain chokepoint.
CNC machining (CNC, computer numerical control, numerical control): Cutting parts from metal or plastic with machines whose tools are moved by computer numerical control, following a programmed toolpath. It is the backbone of precision manufacturing.
Combined heat and power (CHP, cogeneration, co-generation): Generating electricity and useful heat together from one plant, raising overall efficiency.
Computer vision (machine vision)In Computing: AI that interprets images and video, for tasks such as detecting objects, reading text or inspecting parts.
Container terminal (container port): The part of a port where container ships are loaded and unloaded and boxes are stored and moved to trucks and trains.
Continuing resolutionIn Aerospace: A stopgap US law that funds agencies at prior-year levels when Congress has not passed annual appropriations. It usually bars new programs, called new starts, and production increases, which delays defense work.
Contract manufacturing (manufacturing-as-a-service, on-demand manufacturing): Making parts or products for another company to its design. Online platforms now quote and route machining and printing jobs to networks of shops.
Copper electroplating (damascene, electroplating, through-silicon via, TSV): Depositing copper from a plating bath to form a chip's wiring, as in the damascene process, or to fill through-silicon vias in stacked chips.
Core loss (iron loss, eddy-current loss, hysteresis loss): The energy lost as heat in a magnetic core each cycle, from hysteresis and eddy currents. Lower core loss means more efficient transformers and motors.
Cost, insurance and freight (CIF): A trade term in which the seller pays for goods, insurance and shipping to the destination port. Import duties are often calculated on CIF value.
Crack spread (crack spreads, 3-2-1 crack spread): The difference between the price of refined products and the crude oil they come from, a quick proxy for refining profitability. A common form is the 3-2-1 spread.
Crane moves per hour (moves per hour, gross crane rate): The number of containers a crane lifts each hour, the main measure of terminal productivity.
Critical mineral (critical material)In Finance: A mineral or material considered essential to economic or national security whose supply is at risk of disruption. Governments publish official lists, such as the US Geological Survey critical minerals list.
Critical Raw Materials Act (CRMA, Regulation (EU) 2024/1252)In Batteries: The 2024 EU law, Regulation (EU) 2024/1252, on securing critical raw materials. Its 2030 benchmarks call for EU extraction of 10%, processing of 40% and recycling of 25% of EU needs, and no more than 65% from any one non-EU country.
Crude distillation unit (CDU, atmospheric distillation, crude distillation column): The first and largest unit in a refinery, which heats crude oil and separates it by boiling range into gases, naphtha, kerosene, diesel and residue. Its size sets a refinery's nameplate capacity.
Crude oil benchmarks (Brent, WTI, West Texas Intermediate): Reference grades used to price oil worldwide. Brent from the North Sea and WTI from the US are the main ones; local grades trade at premiums or discounts to them.
Cryolite (Na₃AlF₆, smelting bath): Sodium aluminum fluoride (Na₃AlF₆), the molten salt bath in which alumina is dissolved for smelting.
Current efficiency: The share of electric current in an electrolytic cell that produces metal rather than being lost to side reactions. Modern aluminum cells reach ≈95%.

D

Dark factory (lights-out manufacturing, lights-out factory): A plant that runs production for long periods with no people on the floor, so lights and heating can stay off. Few plants do this continuously; most run unattended only for overnight or weekend windows.
Defense industrial base (DIB): The companies and facilities that design and make military equipment and the materials and parts it depends on.
Defense Logistics Agency (DLA, DLA Strategic Materials): The US Defense Department agency that buys supplies for the military. Its Strategic Materials office manages the National Defense Stockpile.
Defense Production Act Title III (DPA Title III, Defense Production Act)In Aerospace: A US authority that lets the Defense Department fund, lend to or guarantee domestic production of materials and components critical to national defense.
DFARS (Defense Federal Acquisition Regulation Supplement)In Aerospace: The US Defense Department's supplement to the Federal Acquisition Regulation, adding defense-specific contract rules. Its clauses restrict sourcing of specialty metals, certain magnets and some Chinese-made components.
Digital thread: A linked flow of data about a product from design through manufacture, inspection and service, so every stage works from the same records.
Digital twin (digital twins, urban digital twin)In Computing: A live digital model of a physical asset, process or system, kept up to date with sensor data and used to simulate, monitor and predict its behavior.
Directed energy deposition (DED, wire arc additive manufacturing, WAAM): An additive process that melts metal wire or powder as it is fed into a laser, electron beam or arc. It builds or repairs large parts quickly but with coarser detail.
Distributed control system (DCS)In Computing: A plant-wide control system that runs many control loops through controllers spread across a facility, common in chemical and power plants.
District heatingIn Batteries: A network of insulated pipes that carries hot water or steam from central plants to heat many buildings. Large heat stores can charge from cheap electricity and feed these networks.
Drive-by-wire (drive by wire): Controlling a vehicle's steering, braking and throttle electronically instead of by mechanical links, which autonomy systems need.
Dual sourcing (second source, single-source, sole-source): Buying a critical input from two independent suppliers so one failure does not stop production. Single-sourced parts are a common supply-chain weakness.
Dual-use (dual-use technology, dual-use goods)In Aerospace: Describes goods, software and technology with both civilian and military uses, such as drones, machine tools and some chips. They are controlled under regimes such as the EAR and the Wassenaar Arrangement.
Dynamic positioning (DP)In Computing: A computer-controlled system that holds a ship in place using its thrusters, essential during cable repair and offshore work.

E

EAR (Export Administration Regulations)In Aerospace: The US Commerce Department rules that control exports of commercial and dual-use items, software and technology. Items are classified on the Commerce Control List.
EBITDAIn Finance: Earnings before interest, taxes, depreciation and amortisation, a rough measure of operating earnings before financing and non-cash charges. It is not defined under GAAP and ignores capital spending and working capital needs.
ECCN (export control classification number)In Aerospace: A five-character code that places an item on the Commerce Control List, such as 2B001 for certain machine tools. It determines which license requirements apply.
Edge computing (edge AI, edge analytics)In Computing: Processing data near where it is produced, such as on a device or local gateway, instead of in a distant cloud. It cuts delay and bandwidth needs.
Electrical steel (silicon steel, grain-oriented electrical steel, GOES, non-oriented electrical steel, NOES): Steel with ≈3% silicon, rolled into thin sheets that cut energy loss in transformer and motor cores. Grain-oriented grades suit transformers; non-oriented grades suit motors.
Electrolysis (electrolytic hydrogen)In Sustainability: Splitting water into hydrogen and oxygen with electricity, using about 55 kWh per kilogram of hydrogen. Its footprint is set by the power source.
Electron beam melting (EBM): A powder bed process that melts metal with an electron beam in a vacuum. It suits reactive and crack-prone alloys.
Electronic-grade chemicals (wet electronic chemicals, high-purity process chemicals, semiconductor wet chemicals): Ultra-pure acids, solvents, gases and slurries used in chip manufacturing, with impurities in parts per billion or less. Qualification takes many months and suppliers are concentrated.
Electrowinning: Recovering pure metal from a solution by passing current through it, so the metal plates onto cathodes. It is a final step in many hydrometallurgical plants.
Emission factorIn Sustainability: A conversion rate that turns an activity into emissions, for example the share of applied nitrogen fertilizer that escapes as N₂O. The IPCC's 2019 update set 1.6 percent for synthetic nitrogen in wet climates and 0.5 percent in dry ones, replacing a single 1 percent.
Exothermic reactionIn Sustainability: A chemical reaction that releases heat. Hydrotreating is strongly exothermic, and plants recover that heat to cut their energy use.

F

Fab (fabrication plant, semiconductor fab)In Computing: A semiconductor fabrication plant. Leading-edge fabs cost tens of billions of US dollars and take years to build and ramp.
Ferrosilicon (FeSi, FeSi75): An alloy of iron and silicon, made in electric furnaces, used to remove oxygen from steel, to treat cast iron and to make magnesium. Grades are named by silicon content, such as FeSi75.
Field-reversed configuration (FRC): A compact fusion approach in which plasma currents create their own closed magnetic field, needing simpler external magnets than a tokamak.
Firm-fixed-price contract (firm fixed price, FFP)In Aerospace: A contract with a set price the contractor receives regardless of its actual costs. The contractor keeps any savings but absorbs overruns, which can cause large losses on development work.
First-of-a-kind and nth-of-a-kind (FOAK, NOAK, first-of-a-kind, nth-of-a-kind): The first unit of a new plant design is usually far costlier than later units, which benefit from learning and standardization. Cost estimates are often stated for the nth unit.
Five-axis machining (5-axis machining, multi-axis machining, machining center, mill-turn): CNC machining in which the tool or part can move along five axes at once, letting complex shapes be cut in one setup. Aerospace and medical parts rely on it.
Fluid catalytic cracking (FCC, RFCC, residue fluid catalytic cracking, catalytic cracker): A refinery process that breaks heavy oil into gasoline and lighter products over a hot powdered catalyst, which is continuously burned clean in a regenerator. Residue versions crack the heaviest fractions.
Fuel sulfur limit (Euro V fuel, low-sulfur fuel, ppm sulfur): The maximum sulfur content allowed in fuel, in parts per million. Euro V specification diesel and gasoline are limited to 10 ppm.
Functional safety (IEC 61508, ISO 26262): Engineering a system so that its controls respond safely to faults, following standards such as IEC 61508 and, for vehicles, ISO 26262.
Fusion energy (nuclear fusion, fusion power, deuterium-tritium fusion, D-T fusion): Energy released when light nuclei, such as deuterium and tritium, combine at temperatures of over 100 million °C. It would produce little long-lived waste; commercial fusion power plants are still under development.
Fusion gain (scientific breakeven, Q > 1): The ratio of fusion power produced to the heating power put into the plasma, written Q. Q above 1 means more fusion energy out than heat in; a power plant needs far more to cover all losses.

G

Gas atomization (VIGA, EIGA, powder atomization, plasma atomization): Making spherical metal powder by blasting a stream of molten metal with high-pressure gas. Vacuum and electrode induction melting variants keep reactive metals clean.
Gauge repeatability and reproducibility (gauge R&R, GR&R): A study of how much of measured variation comes from the measuring system itself, by repeating measurements with different operators and parts.
Generation IV reactors (Gen IV, advanced reactor, advanced reactors): Advanced reactor designs that use coolants other than water, such as gas, liquid sodium, lead or molten salt, aiming for higher temperatures, better fuel use and passive safety.
Global warming potential (GWP)In Sustainability: A factor that expresses how much heat a gas traps over a set period relative to CO₂. GWP100 uses a 100-year window and is the regulatory norm; GWP20 uses 20 years and weights short-lived methane much more heavily.
Gross refining margin (GRM, refining margin): The value of a refinery's products minus the cost of its crude, per barrel, before operating costs.

H

Haber-Bosch process (Haber–Bosch): The industrial process that makes ammonia from nitrogen and hydrogen over an iron catalyst at high temperature and pressure. It underpins most of the world's nitrogen fertilizer.
Hall-Héroult process (Hall–Héroult, aluminum smelting, aluminium smelting): The standard method for making aluminum: alumina is dissolved in molten cryolite at ≈950 °C and split by electric current, with carbon anodes that burn and release CO₂.
Heat pumpIn Batteries: A device that moves heat from a cooler place to a warmer one using electricity, delivering several units of heat for each unit of power used.
Heat-pipe reactor (heat pipe reactor): A microreactor that moves heat from the core with sealed heat pipes instead of pumped coolant, reducing moving parts.
Helium (liquid helium): An inert gas recovered mainly as a byproduct of natural gas processing and liquefaction. Liquid helium, at ≈4 K, cools MRI and research magnets; the gas is vital for chipmaking, fiber drawing and leak testing.
High-mix, low-volume production (high-mix/low-volume, HMLV, small-batch production): Making many different products in small batches. It favors flexible machines and skilled staff and is the hardest setting to automate fully.
High-temperature gas-cooled reactor (HTGR, pebble-bed reactor, HTR): A reactor cooled by helium and moderated by graphite, with outlet temperatures high enough for industrial heat. Pebble-bed designs use fuel in tennis-ball-sized spheres.
Horizontal transport: Moving containers between quay cranes and the yard, by terminal tractors, straddle carriers or automated guided vehicles.
Hybrid additive-subtractive machine (hybrid manufacturing): A machine that both deposits material and machines it, so a part can be built and finished in one setup.
Hydrometallurgy (hydrometallurgical recycling, hydromet)In Batteries: Recovering metals by dissolving them in acid and separating them chemically. It recovers lithium as well as nickel and cobalt at high purity and is now the dominant recycling route.

I

IAEA (International Atomic Energy Agency): The International Atomic Energy Agency, the UN body that sets nuclear safety standards and verifies that nuclear material is not diverted to weapons.
IDIQ (indefinite delivery, indefinite quantity, indefinite-delivery contract)In Aerospace: A contract that sets terms and a maximum value but leaves quantities and timing open, with work ordered later through task or delivery orders. Its ceiling is not money the contractor is guaranteed to receive.
IEC 62443In Computing: The international standards series for cybersecurity of industrial automation and control systems.
IEEPA (International Emergency Economic Powers Act): The International Emergency Economic Powers Act, a 1977 US law that lets the president regulate trade and payments during a declared national emergency, chiefly through sanctions.
ILA-USMX master contract (ILA, USMX, International Longshoremen's Association, United States Maritime Alliance): The labor agreement between US East and Gulf Coast dockworkers and port employers, running to 30 September 2030. It bars fully automated terminals and equipment and requires agreement before semi-automation is introduced.
Indigenization (domestic substitution, import substitution): Replacing imported technology or inputs with domestically made ones, often under government policy.
Industrial gases: Gases such as oxygen, nitrogen, argon, hydrogen, helium and CO₂ produced and delivered at scale for manufacturing, healthcare and energy.
Industrial Internet of Things (IIoT, industrial IoT)In Computing: Connected sensors, machines and software used in factories, plants and utilities to monitor and control operations.
Industrial robot (six-axis robot, SCARA, robot arm): A programmable manipulator arm used in production for welding, painting, handling and assembly. Six-axis arms are the most flexible; SCARA robots are fast four-axis arms for pick-and-place.
Inert anode (oxygen-evolving anode, non-consumable anode): An aluminum smelting anode made of ceramic, metal or cermet that is not consumed and releases oxygen instead of CO₂. It could remove direct smelting emissions but must survive the corrosive bath for years.
Inertial confinement fusion (ICF, National Ignition Facility, NIF): Fusion achieved by compressing a tiny fuel pellet with lasers or other drivers so it ignites before it flies apart. The US National Ignition Facility first produced more fusion energy than laser energy delivered in December 2022.
Inflation Reduction Act (IRA)In Batteries: The 2022 US law that created or expanded clean-energy tax credits, including Sections 45X, 30D and 48E. The 2025 OBBBA law cut back many of them.
IPCC (Intergovernmental Panel on Climate Change)In Sustainability: The UN body that assesses climate science and publishes the default emission factors and warming potentials that carbon accounting relies on.
IPCEI (Important Project of Common European Interest)In Batteries: Important Project of Common European Interest, an EU state-aid route that lets member states fund large cross-border industrial projects, such as battery value chains, beyond normal aid limits.
ISO 14067In Sustainability: The ISO standard for calculating the carbon footprint of a product. It requires transparent, separate reporting of biogenic carbon and direct land-use change.
ISO/ASTM 52900: The international standard that sets the terms and the seven process categories of additive manufacturing.

L

Laser powder bed fusion (LPBF, L-PBF, selective laser melting, SLM, powder-bed fusion): An additive process that melts thin layers of metal powder with a laser, one layer at a time. It gives fine detail and is the most common metal printing method.
Leaching (acid leaching, bioleaching)In Batteries: Dissolving metals out of a solid, such as black mass or ore, with acid or another solution. It is the first chemical step in hydrometallurgy.
Levelized cost of electricity (LCOE): The lifetime cost of building and running a power plant divided by the electricity it produces, in $/MWh, used to compare technologies.
LiDAR (lidar, Lidar): Light detection and ranging, a sensor that measures distance by timing reflected laser pulses to build a 3D map. Autonomous vehicles and robots use it to see their surroundings.
Light sweet crude (sweet crude, sour crude): Crude oil that is low in density and sulfur, which yields more high-value fuels with less processing. Heavy sour crude is the opposite.
Light-water reactor (LWR, pressurized-water reactor, PWR, boiling-water reactor, BWR): A reactor cooled and moderated by ordinary water, the type used in most of the world's nuclear plants. Pressurized-water reactors keep the water liquid under pressure; boiling-water reactors let it boil.
Liquefied petroleum gas (LPG): Propane and butane, gases at normal conditions that are stored as liquids under modest pressure. It is used for cooking, heating and as a petrochemical feedstock.
Load following (load-following): Changing a power plant's output to match changing demand through the day. Nuclear and large thermal plants traditionally run flat but newer designs aim to follow load.
Low-carbon aluminum (green aluminum, low-carbon aluminium): Aluminum made with low emissions per tonne, usually from hydropower-fed smelters or recycled metal. It can sell at a premium over standard metal.
Low-rate initial production (LRIP, low-rate production)In Aerospace: The first, limited production run of a defense system, used to prove the production line and supply test articles before full-rate production is approved.

M

Machine tending: Loading and unloading parts into machines such as CNC mills, a common first job for robots and cobots.
Machine tool (machine tools): A powered machine that shapes metal or other rigid material by cutting, grinding or forming, such as a lathe, mill or press. Supply is concentrated in a few countries.
Made in China 2025: China's 2015 industrial plan to become a leader in advanced manufacturing sectors such as chips, robotics, aerospace and electric vehicles, with high domestic content targets.
Magnetic permeability (permeability, relative permeability): How easily a material carries magnetic flux, relative to empty space. High permeability is the main goal for core materials.
Mannheim process: A process that makes sulfate of potash by reacting potassium chloride with sulfuric acid at high temperature.
Manufacturing execution system (MES): Software that tracks and directs production on the factory floor in real time, linking orders, machines, materials and quality records.
Manufacturing USA (manufacturing innovation institutes): A US network of public-private institutes, each focused on one advanced manufacturing technology, such as additive manufacturing or photonics.
MARSEC levels (MARSEC, MARSEC directive): The three US maritime security threat levels set by the Coast Guard for ports and ships; Coast Guard MARSEC directives impose security measures, including on cyber risk.
Material assistance (material assistance cost ratio, MACR)In Batteries: Under US tax law since 2025, the share of a facility's or component's direct costs that comes from prohibited foreign entities. Projects exceeding set thresholds, which tighten each year, lose clean-energy credits.
Matte (PGM-rich matte, nickel matte): A molten mix of metal sulfides produced in smelting, from which copper, nickel or platinum-group metals are later refined.
Melt pool: The small pool of molten metal created where the energy beam hits the powder or wire. Its size and stability control part density and defects.
Microfactory (micro-factory, distributed manufacturing): A small, highly automated production site that makes goods close to customers in short runs, instead of in one large central plant.
MicrogridIn Batteries: A local grid with its own generation and storage that can run connected to the main grid or alone, in island mode. Ports, campuses and remote sites use microgrids for resilience.
Microreactor (micro-reactor, nuclear microreactor): A very small nuclear reactor, typically up to ≈20 MWe, that can be transported by truck or ship to power remote sites or military bases for years without refueling.
Military specification (MIL-SPEC, mil-spec, MIL-STD): A US defense standard defining the properties, testing and packaging a material or product must meet for military purchase.
Model-based definition (MBD, model-based enterprise): Putting dimensions, tolerances and other product data directly in the 3D model instead of on separate drawings, so machines and inspectors can read it automatically.
Molten salt reactor (MSR): A reactor in which fuel is dissolved in molten salt or salt serves as coolant, running at low pressure and high temperature.
Molten salt storage (molten salt, solar salt)In Batteries: Thermal storage using a mixture of nitrate salts, kept liquid at ≈290–565 °C. Concentrated solar power plants use it to keep generating after sunset.
MTConnect: An open standard, first released in 2008, that lets machine tools report their status and data in a common format for monitoring and analytics.

N

Nameplate capacityIn Batteries: A factory's rated maximum annual output, in GWh for battery plants. Actual output is usually lower because of ramp-up time, yield and demand.
National Defense Stockpile (NDS, strategic stockpile): The US government's reserve of strategic and critical materials, held for national defense emergencies and bought and sold by the Defense Logistics Agency.
Natural gas benchmarks (Henry Hub, TTF, Title Transfer Facility, MMBtu, million British thermal units): Reference prices for natural gas, the main feedstock and cost for ammonia. Henry Hub is the US benchmark; the Dutch TTF is Europe's. Prices are quoted per million British thermal units.
NDAA (National Defense Authorization Act)In Aerospace: The National Defense Authorization Act, the annual US law that sets defense policy and authorizes spending levels. It often carries sourcing bans, such as limits on Chinese-made drones, magnets and electronics.
Near-net shape (net shape): Making a part close to its final form at the start, by casting, forging or printing, so little material must be machined away.
NFPA 13: The US National Fire Protection Association standard for installing automatic fire sprinkler systems. Its occupancy and storage rules shape factory and warehouse design.
Nitrates Directive (Directive 91/676/EEC): Council Directive 91/676/EEC, the EU law that limits nitrogen use from manure and fertilizers to protect water from nitrate pollution.
NPK fertilizer (complex fertilizer, compound fertilizer, NPK): A blended or compound fertilizer containing nitrogen, phosphorus and potassium in stated ratios.
NRC (Nuclear Regulatory Commission, US Nuclear Regulatory Commission): The US Nuclear Regulatory Commission, which licenses and oversees civilian nuclear reactors and materials.
Nutrient Based Subsidy (NBS): India's scheme that pays fertilizer companies a fixed subsidy per kilogram of nitrogen, phosphorus, potassium and sulfur in phosphate and potash fertilizers, keeping farm prices low.
Nutrient basis (P₂O₅, K₂O, K₂O equivalent, N-P-K): Fertilizer quantities are often stated as nutrient content: N for nitrogen, P₂O₅ for phosphate and K₂O for potash, regardless of the product form.

O

Obligated fundingIn Aerospace: Money the government has legally committed to a contract, as opposed to its ceiling or announced value. It is the firmest measure of contract revenue to come.
Offtake (offtake agreement)In Sustainability: A contract in which a buyer commits in advance to purchase a share of a producer's future output, often for several years. Offtakes give lenders confidence to finance a plant.
Oil refinery (refinery, petroleum refinery): A plant that separates crude oil into fuels and feedstocks by distillation and then converts heavier fractions into lighter, more valuable products.
OPC UA (OPC Unified Architecture, umati): OPC Unified Architecture, an open standard for secure, structured data exchange between industrial machines and software. Companion specifications define common models for specific machine types.
Operational technology (OT)In Computing: The hardware and software that monitor and control physical equipment, such as pumps, valves and production lines, as distinct from office IT.
Organic Rankine cycle (ORC): A Rankine cycle that uses an organic fluid with a low boiling point instead of water, to make power from low-temperature heat such as waste heat or geothermal sources.

P

Part consolidation: Redesigning an assembly of many pieces as one printed part, cutting fasteners, assembly steps and failure points.
Passive safety (passive cooling, natural circulation): Reactor safety features that work without power, pumps or operator action, using gravity, natural circulation or heat conduction to shut down and cool the core.
PEM electrolyzer (PEM electrolyser, proton exchange membrane electrolyzer): An electrolyzer that splits water into hydrogen and oxygen across a proton exchange membrane. It responds quickly to variable power but needs platinum and iridium catalysts.
Perfluorocarbons (PFCs, PFC, CF₄, C₂F₆): Very long-lived, potent greenhouse gases, mainly CF₄ and C₂F₆, released by aluminum smelters during anode effects. Each tonne warms thousands of times more than a tonne of CO₂.
Phosphate fertilizers (DAP, MAP, diammonium phosphate, monoammonium phosphate): Fertilizers that supply phosphorus, mostly diammonium phosphate (18-46-0) and monoammonium phosphate (11-52-0), made by reacting phosphoric acid with ammonia.
Phosphate rock (phosphorite): Sedimentary rock rich in phosphate minerals, mined chiefly in Morocco and Western Sahara, China and the US. It is the raw material for phosphate fertilizer.
Phosphogypsum: A slightly radioactive gypsum byproduct of phosphoric acid production, ≈5 t per tonne of P₂O₅, usually stored in large stacks.
Photoresist (EUV resist)In Computing: A light-sensitive coating on the wafer that changes chemically where exposed, so the pattern can be developed and etched. Resist chemistry limits resolution and dose.
Pidgeon process: A method of making magnesium by heating calcined dolomite with ferrosilicon in a vacuum. It is energy-intensive and dominates Chinese production.
Pilot line (pilot plant, demonstration line)In Batteries: A small production line used to prove a cell design and process before full-scale manufacturing. Pilot output is far too small to show whether costs will fall at scale.
Platinum group metals (PGM, PGMs, platinum-group metals): Six rare metals found together in ore: platinum, palladium, rhodium, ruthenium, iridium and osmium. They are prized as catalysts and are mined mainly in South Africa and Russia.
Polypropylene (PP): A widely used plastic made by polymerizing propylene, which refineries with petrochemical units produce from cracker off-gases.
Port automation (automated terminal, semi-automated terminal): Running terminal equipment such as stacking cranes, vehicles and gates with software and remote or autonomous control. It raises consistency and safety but faces labor agreements and high upfront costs.
Potash (MOP, muriate of potash, KCl, SOP, sulfate of potash): Potassium-bearing salts used as fertilizer. Muriate of potash (potassium chloride) dominates; sulfate of potash suits chloride-sensitive crops. It is mined chiefly in Canada, Russia and Belarus.
Potline (potroom): A long series of electrolytic cells, called pots, connected electrically in an aluminum smelter. It runs continuously at hundreds of kiloamperes and cannot be stopped without major cost.
Predictive maintenanceIn Computing: Using sensor data and analytics to predict when equipment will fail so it can be fixed just before, reducing downtime.
Printed-circuit heat exchanger (PCHE, PCHEs): A compact heat exchanger made from plates with chemically etched microchannels, diffusion-bonded into a solid block that withstands high pressure.
Private 5G (private LTE, private cellular)In Computing: A dedicated cellular network owned or operated for one site, such as a factory, port or farm, giving reliable coverage and control.
Process safety rules (PSM, Process Safety Management, RMP, Risk Management Program)In Computing: The main US rules for hazardous chemical plants: OSHA's Process Safety Management standard protects workers, and EPA's Risk Management Program protects nearby communities.
Product slate (product yield): The mix of products a refinery makes from its crude. Complex refineries can shift the slate toward higher-value fuels.
Programmable logic controller (PLC, PLCs)In Computing: A rugged industrial computer that controls machines and processes in real time.
Prohibited foreign entity (PFE, specified foreign entity, foreign-influenced entity)In Batteries: A US tax-law category created in 2025 covering specified foreign entities, such as companies controlled by China, and foreign-influenced entities tied to them. It bars or limits clean-energy credits, including for batteries.
Pyrometallurgy (pyrometallurgical recycling, smelting)In Batteries: Recovering metals by smelting at high temperature. It handles mixed feed robustly and recovers nickel, cobalt and copper, but loses lithium and aluminum to slag and uses much energy.

Q

Quality Information Framework (QIF): An ANSI standard for exchanging measurement and inspection data, such as results from coordinate measuring machines, across software.

R

Rankine and Brayton cycles (Rankine cycle, Brayton cycle)In Batteries: The two main heat-engine cycles for generating power. The Rankine cycle boils water into steam to drive a turbine; the Brayton cycle heats compressed gas, as in gas turbines.
Reachstacker: A heavy vehicle with a telescopic boom that lifts and stacks containers, used where cranes are not available.
Recompression Brayton cycle (RCBC, recompression cycle): The leading supercritical CO₂ cycle layout, which splits the flow between two compressors to cut heat lost in cooling and raise efficiency.
Recuperator (recuperators): A heat exchanger that passes heat from a cycle's hot exhaust to the cooler fluid entering the heater, raising efficiency. Supercritical CO₂ cycles depend on large, efficient recuperators.
Refined products (naphtha, premium motor spirit, PMS, automotive gas oil, AGO, gasoil, Jet A-1): The main fuels and feedstocks refineries make. Naphtha feeds petrochemicals and gasoline blending; gasoline is sold in Nigeria and elsewhere as premium motor spirit; diesel is sold as automotive gas oil.
Refinery residue (residuum, reduced crude, resid, vacuum residue): The heavy fraction left at the bottom of crude distillation, which must be cracked, coked or sold as fuel oil.
Refinery turnaround (turnaround, planned shutdown): A planned shutdown of a refinery or unit for inspection, maintenance and upgrades, usually every few years.
Remotely operated vehicle (ROV, work-class ROV)In Computing: An uncrewed underwater robot controlled from a ship through a tether, used for cable repair, inspection and seabed work.
Reshoring and nearshoring (reshoring, nearshoring, onshoring, friend-shoring, friendshoring): Moving production back to the home country (reshoring), to nearby countries (nearshoring) or to allied countries (friend-shoring), to cut supply risk and lead times.
Residual stress: Stress locked inside a part after manufacture, from uneven heating and cooling. In printed metal it can cause distortion and cracking unless relieved by heat treatment.
Robot density (IFR): The number of industrial robots per 10,000 manufacturing employees, the International Federation of Robotics' standard measure of how automated a country's industry is.

S

SCADA (supervisory control and data acquisition)In Computing: Supervisory control and data acquisition, software that gathers data from remote equipment and lets operators monitor and control it.
Section 45Q (45Q, carbon oxide sequestration credit): The US tax credit for capturing and storing CO₂. Since the 2025 OBBBA law it pays up to $85 per tonne for point-source capture and $180 for direct air capture. Stored and used CO₂, including for oil recovery, now earn the same rate.
Section 45Z (clean fuel production credit)In Sustainability: A U.S. tax credit created by the Inflation Reduction Act of 2022 for low-emission transport fuel produced from 2025, scaled by carbon intensity. As amended in 2025, it uses the 45ZCF-GREET model, excludes ILUC for fuel produced after 2025 and restricts feedstocks to North America.
Section 232 (Section 232 tariffs, 232 tariffs): A US law, from the Trade Expansion Act of 1962, that lets the president restrict imports that threaten national security. Its steel and aluminum tariffs, first set in 2018, were raised to 50% in June 2025.
Section 301 (Section 301 tariffs, USTR): A US trade law that lets the US Trade Representative act against unfair foreign trade practices, the basis for the tariffs placed on many Chinese goods from 2018.
Selective catalytic reduction (SCR, NOx abatement): Removing nitrogen oxides from exhaust by reacting them with ammonia or urea over a catalyst, turning them into nitrogen and water.
Seveso III Directive (Seveso III, Directive 2012/18/EU)In Computing: Directive 2012/18/EU, the EU law on preventing and limiting major accidents at sites that store dangerous chemicals.
Ship-to-shore crane (STS crane, STS, quay crane): The large quay crane that lifts containers between ships and the terminal. Its moves per hour set how fast a ship is turned around.
Shore power (cold ironing, onshore power supply)In Batteries: Supplying electricity from land to a docked ship so it can switch off its engines. It cuts port emissions but needs large grid connections at the berth.
Sintering (debinding): Bonding powder particles into a solid by heating below the melting point. Binder-jetted metal parts and ceramics are densified this way.
Small modular reactor (SMR, SMRs, small modular reactors): A nuclear fission reactor of up to ≈300 MWe, designed to be built largely in factories and installed in modules. Smaller size aims to cut cost and construction risk.
Smelter (smelting plant): A plant that extracts metal from ore or concentrate by heating it in furnaces, often producing an intermediate such as matte or crude metal for refining.
Sodium-cooled fast reactor (SFR, fast reactor): A reactor cooled by liquid sodium that uses fast neutrons, which lets it burn more of its fuel and some long-lived waste.
Soft magnetic material (soft magnet, soft magnetic composite, SMC): A material that magnetizes and demagnetizes easily with little loss, used in transformer, motor and inductor cores, unlike permanent magnets.
Solvent extraction (SX)In Batteries: Separating dissolved metals by mixing a water solution with an organic liquid that selectively picks up one metal. It is used both in battery recycling and in rare earth refining.
Steam methane reforming (SMR)In Sustainability: The dominant industrial route to hydrogen: natural gas reacts with steam at high temperature to give hydrogen and CO₂. Without capture it produces grey hydrogen.
Straddle carrier (automated straddle carrier): A tall vehicle that straddles a container, lifts it and carries it around a terminal. Automated versions run without drivers.
Stranded assetIn Finance: An asset that loses much of its value before the end of its expected life because of regulation, new technology or changing markets. Fossil fuel reserves that cannot be developed under tighter climate policy are a frequently cited example.
Strategic outsourcing: Deliberately buying from suppliers the activities a company does not need to control, while keeping core capabilities in-house.
Stress corrosion cracking (SCC): Cracking caused by the combined effect of tensile stress and a corrosive environment, which can fail parts well below their normal strength.
Submerged arc furnace (submerged-arc furnace, carbothermic reduction): An electric furnace whose electrodes are buried in the charge, used to make ferroalloys and silicon metal by carbothermic reduction, in which carbon strips oxygen from ore.
Sulfuric acid (H₂SO₄, sulphuric acid): The most produced industrial chemical, used to make phosphate fertilizers, leach metals and refine fuels. Much of it is recovered from sulfur at refineries and smelters.
Superalloy (nickel superalloy, Inconel): A nickel-, cobalt- or iron-based alloy that keeps its strength and resists oxidation at very high temperatures, used in turbines and reactors. Inconel is a common family.
Supercritical CO₂ power cycle (sCO₂, sCO2, supercritical CO2, supercritical carbon dioxide, sCO₂ Brayton cycle): A closed Brayton power cycle that uses CO₂ above its critical point, 31 °C and ≈7.4 MPa, as the working fluid. Its dense fluid allows small turbines and high efficiency at moderate temperatures.
Supplier qualification (supplier approval): The testing and approval a buyer requires before a supplier's part or process can be used in production. In aerospace and defense it can take many months, which slows switching suppliers.
Surge capacity (surge production): The ability to raise output quickly in an emergency or war, which needs spare equipment, workforce and inventories.

T

Tapered integration (partial integration, quasi-integration): Making part of an input in-house while still buying the rest from outside suppliers, to keep both control and market discipline.
Tariff-rate quota (TRQ): A trade limit that charges a low tariff up to a set import volume and a higher tariff beyond it.
Technology readiness level (TRL)In Aerospace: A 1–9 scale, developed at NASA, for how mature a technology is, from basic principles observed to proven in operation. Agencies and investors use it to judge development risk. See the table
Teleoperation (remote operation, remote-controlled cranes): Operating a vehicle or crane remotely from a control room, often as a step toward full autonomy.
Terminal operating system (TOS): Software that plans and controls a container terminal: ship stowage, yard positions, equipment dispatch and gate traffic.
Terminal tractor (yard truck, yard tractor, port tractor, terminal truck): A short truck that tows container chassis between quay, yard and gates. It is a leading target for battery power and autonomy.
TEU (twenty-foot equivalent unit, FEU): Twenty-foot equivalent unit, the standard measure of container volume. A 40-foot container counts as 2 TEU; ship and port capacity are quoted in TEU.
Thrifting: Cutting the amount of precious metal used per product, such as per catalytic converter, through better design.
Tokamak (ITER, high-temperature superconducting tokamak): A doughnut-shaped fusion device that holds plasma in place with strong magnetic fields. It is the most studied fusion design; ITER in France is the largest under construction.
Toolpath (post-processor, G-code): The programmed route a cutting tool follows to make a part. CAM software generates it, and a post-processor translates it into code for a specific machine.
Tritium breeding (tritium fuel cycle, breeding blanket): Producing tritium fuel inside a fusion plant by hitting lithium with neutrons from the reaction. Plants must breed their own because tritium is scarce.
Troy ounce (oz t, troy oz): The unit for precious metals, equal to ≈31.1 g, slightly heavier than an ordinary ounce.
Turboexpander (turbo-expander): A turbine through which high-pressure gas expands to drive a generator or compressor, used in power cycles and gas processing.

U

Ultra-supercritical steam (USC, A-USC, advanced ultra-supercritical): Steam power plants running above the critical point of water at very high temperature and pressure, giving higher efficiency than older subcritical plants.
Urea (CO(NH₂)₂): The world's most used nitrogen fertilizer, made from ammonia and CO₂, containing 46% nitrogen. It is also used in diesel exhaust treatment.
USMCA (United States-Mexico-Canada Agreement): The United States-Mexico-Canada Agreement, the North American free trade deal that replaced NAFTA in 2020. Goods that meet its origin rules trade with lower duties.

V

Vertical integration (vertically integrated): Owning more steps of a supply chain inside one company, instead of buying from suppliers. It gives control and learning but ties up capital and can reduce flexibility.
Volatilization roasting (roasting): Heating a sulfide concentrate in air so the target metal leaves as an oxide vapor that is collected as fume. It is used to make crude antimony trioxide.

W

Wafer (silicon wafer, 300 mm wafer)In Computing: A thin disc of pure silicon, usually 300 mm across, on which many chips are built at once before being cut apart.
Washcoat: The porous coating on a catalyst's ceramic honeycomb that holds the precious metal particles and gives them a large surface area.
Wassenaar Arrangement (Wassenaar)In Aerospace: A multilateral export-control regime in which participating states agree on lists of conventional arms and dual-use goods to control, then apply them in national rules.
WEF Global Lighthouse Network (Lighthouse factory, Global Lighthouse Network): A World Economic Forum program that names factories judged to lead in applying digital and automation technology at scale.
Wet-process phosphoric acid (phosphoric acid, wet process, acidulation): Phosphoric acid made by dissolving phosphate rock in sulfuric acid. It is the base for phosphate fertilizers and leaves large volumes of phosphogypsum.

Y

Yard cranes (rubber-tyred gantry crane, RTG, rail-mounted gantry crane, RMG, automated stacking crane, ASC): Gantry cranes that stack and retrieve containers in a terminal's storage yard. Rubber-tyred versions move freely; rail-mounted and automated stacking cranes run on fixed tracks.

Z

Zeolite (zeolites, molecular sieve): A crystalline aluminosilicate mineral with a regular network of tiny pores, used as a catalyst, ion exchanger, adsorbent and molecular sieve.