| Acronym | Meaning |
| ISC | Initial Safe Concentration |
| CSE | Cigarette Smoke Extract |
| MOVS | Molecular Orbital Valence State |
| ABXP | Ab Initio Dv-x.alpha. Point Charge Approxn. (in Solid Surface Electronic Structure Calcn.) |
| IUMS | International Union Of Microbiological Societies |
| CASS | Computer Assisted Stratification And Sampling |
| BTPPC | Benzyltriphenylphosphonium Chloride |
| DSP | Digital Signal Processor |
| REM | Rapid Eye Movement |
| BSO | Brueckner Spin Orbitals |