| Acronym | Meaning |
| FBR | Fixed Bed Reactor |
| ROMP | Restricted Open-shell Moeller-Plesse |
| EPA | Environment Potential Approach (in Electronic-structure Calcn.) |
| FOLIBS | Fiber Optic Laser Induced Breakdown Spectroscopy |
| GMC | Giant Molecular Cloud |
| TSD | Technical Support Document |
| LEMOFS | Laser-excited Molecular Fluorescence Spectrometry |
| PES | Potential Energy Surface |
| CFS | Chemical Fixation And Solidification (of Hazardous Wastes) |
| OP-AMP | Operational Amplifier |