| Acronym | Meaning |
| ECWR | Electron Cyclotron Wave Resonance |
| PPBA | Plane-wave Plane-wave Born Approximation |
| BTCC | Biological Threat Characterization Centerpar |
| MFO | Mixed-function Oxidase |
| ICAC | Institute Of Clean Air Companies |
| CADD | Computer Aided Drafting And Design |
| SEED | Self Electro-optic Effect Device |
| NPA | Natural Population Analysis (for Electron Configuration Of Mols.) |
| VHMS | Volcanic-hosted Massive Sulfide |
| LBE | Lance Bubbling Equil. |