| Acronym | Meaning |
| CLU-IN | Clean-Up Information Bulletin Board System (formerly OSWER-BBS) |
| TEM | Transmission Electron Microscopy |
| TEIL | Two-electron Ionization Ladder (wave Function) |
| FGM | Functionally Gradient Materials |
| LWR | Light-water Reactor |
| MPO | Metropolitan Planning Organization |
| EIIA | European Information Industry Association |
| FAES | Flame Atomic Emission Spectroscopy |
| HV | Vickers Hardness Number |
| IPG | Immobilized PH Gradient |