| Acronym | Meaning |
| ACIS | Advanced CCD Imaging Spectrometer |
| CCMST | Co-ordinating Committee On Marine Science And Technology (UK) |
| SGFET | Suspended Gate Field-effect Transistor |
| RMP | Restricted Moeller-Plesset |
| IOMC | Inter-Organization Program For The Sound Management Of Chemicals |
| CPA | Coupled-pair Approximation |
| BWEN | Brillouin-Wigner (second-order Perturbation Theory With) Epstein-Nesbet (energy Denominators) |
| AIMP | Ab Initio Model Potential (for Valence-electron Mol. Calcns.) |
| HAMS | Helium Atoms Measurement System |
| ISSJ | International Scientific Station Of The Jungfraujoch (atm. Observatory |