| Acronym | Meaning |
| FE | Fugitive Emissions |
| FEMA | Federal Emergency Management Agency |
| IEHT | Iterative Extended Hueckel Theory |
| INDO/2-AHP | INDO/2-average Hole Potential |
| RAM | Reference-system Average Mayer-function (in Perturbation Theory) |
| ORU | In Orbit Replaceable Unit (spacecraft) |
| FOM | Forced Oscillator Model |
| ESPS | Electrode-separated Piezoelectric Sensor |
| WAO | Wet Air Oxidation |
| OSTI | Office Of Scientific And Technical Information |