| Acronym | Meaning |
| GO | Gaussian Overlap (approxn. In Mol. Calcns.) |
| I-TEF | International Toxicity Equvalency Factor |
| RPL | Radio Photoluminescence |
| NIST | National Institute Of Standards And Technology (formerly NBS) |
| MBR | Mobil Benzene Reduction [process] |
| VFT | Voguel-Fulcher-Tamman [equation] |
| CFS | Chemical Fixation And Solidification (of Hazardous Wastes) |
| UMNDO | Spin-unrestricted Modified Neglect Of Diatomic Overlap |
| NMFS | National Marine Fisheries Service (of NOAA) |
| COMARO | Composite Magic-angle Rotation |