| Acronym | Meaning |
| NATICH | National Air Toxics Information Clearinghouse |
| ADWIOS | Adiabatic Distorted Wave Infinite Order Sudden |
| PEMA | Pseudoeffective Mass Approxn. (for Impurity Energy Levels In Semiconductors) |
| BAT | Back Arc Tectonics |
| EX-MEG | Excited-mixed Exponentially Generated (wave Function) |
| HMWMC | Hazardous Materials And Waste Management Consortium |
| AQMWA | Air Quality And Waste Management Association |
| HY-CIVB | Hylleraas-configuration Interaction Valence Bond |
| HBJ | Hougen-Bunker-Johns (Hamiltonian For Mol. Calcns.) |
| TFELD | Thin Film Electroluminescent Device |