| Acronym | Meaning |
| FIRF | Finite Impulse Response Filter |
| SCCO2 | Supercritical Carbon Dioxide |
| INEEL | Idaho National Engineering And Environmental Laboratory |
| HSC | Hyperspherical Coordinate (representation In Calcns. On Electron-atom Scattering) |
| EFCE | European Federation Of Chemical Engineers |
| DBPR | Microbiological And Disinfection Byproducts Regulations |
| ESA | Electrostatic Analyzer |
| HEDS | Human Exploration And Development Of Space |
| FOM | Forced Oscillator Model |
| HMR | Hazardous Materials Regulations |