| Acronym | Meaning |
| IFOT | Invariant Fock Operator Technique |
| ASPT | Av. Score Per Taxon |
| CCMST | Co-ordinating Committee On Marine Science And Technology (UK) |
| NHL | Non-Hodgkin Lymphoma |
| CTBT | Comprehensive Test Ban Treaty |
| AGS | Alternating Gradient Synchroton |
| UFF | Universal Force Field |
| SSC | Sudden Storm Commencement (magnetic Storm) |
| PSD | Passive Sampling Device(s) (for Air Pollution) |
| F4 | Fourth-order Feenberg (quantum Theory) |