| Acronym | Meaning |
| SC-VB | Spin-coupled Valence Bond |
| NRMS | Neutralization-reionization Mass Spectrometry |
| CRT | Continuously Regeneration Trap |
| IGFET | Insulated Gate Field Effect Transistor |
| YSAG | Yttrium Scandium Aluminum Garnet |
| BCRU | British Committee On Radiation Units And Measurements |
| MCS | Media Cleanup Standard |
| GMP | Good Manufacturing Practice |
| GCDIS | Global Change Data And Information System |
| FTD | Flame Thermionic Detector (gas Chromatography) |