| Acronym | Meaning |
| SOTE | Standard Oxygen Transfer Efficiency (of Aeration Diffusers) |
| PELAN | Pulsed Elemental Analysis With Neutrons |
| FFDCA | Federal Food, Drug, And Cosmetic Act (US) |
| APRF | Army Pulse Radiation Facility |
| EBI | Equivalent Background Illumination |
| ECH | Electron Cyclotron Heating |
| FLMS | Femtosecond Laser Mass Spectrometry |
| HI | Hydrogen Index |
| CS | Centrifugal Sudden (approximation) |
| CONTOUR | Comet Nucleus Tour |