| Acronym | Meaning |
| ACATS | Airborne Chromatograph For Atmospheric Trace Species |
| CSD | Cortical Spreading Depression |
| TDRH | Time-dependent Rotated Hartree (theory) |
| CSRR | Coupled-state Rigid-rotor |
| IMPROVE | Interagency Monitoring For Protected Visual Environments |
| BIOS | British Intelligence Objectives Sub-committee |
| EBV | Epstein-Barr Virus |
| FAP | Familial Adenomatous Polyposis |
| CLIPS | Chemical List Index And Processing System |
| FRM | Fiber-reinforced Metals |