| Acronym | Meaning |
| HSS | High-speed Steel |
| FCP | Function Counterpoise (method For Eliminating Basis Set Superposition Error) |
| ECCS | Emergency Core Cooling System |
| CRIB | Computerized Resources Information Bank |
| EDN | Eosinophil-derived Neurotoxin |
| CIS | Commonwealth Of Independent States |
| UFG | Ultrafine Grained |
| RCA | Ricinus Communis Agglutinin |
| GMAD | Geometric Mean Aerodynamic Diameter |
| NTP | Normal Temperature And Pressure |