| Acronym | Meaning |
| CC-PV(D,T,Q) | Correlation-consistent Polarized (double, Triple, Or Quadruple)-split Valence Basis Set |
| MPA | Multipurpose Additive |
| SDR | Spin-dependent Resonance |
| BCSLN | Bardeen-Cooper-Schrieffer-Lipkin-Nogami (model In Calcns. On Molecules With Quantum Field Theory) |
| SOLSE | Shuttle Ozone Limb Sounding Experiment |
| EMIRA | Epidemiological And Microbial Risk Assessment |
| DMSP | Defense Meteorological Satellite Program |
| NCE | New Chemical Entity |
| KRIPES | K-resolved Inverse Photoemission Spectroscopy |
| ECBM | Enhanced Coalbed Methane (recovery) |