| Acronym | Meaning |
| CASS | Computer Assisted Stratification And Sampling |
| LHC | Large Hadron Collider |
| SEGH | Society For Environmental Geochemistry And Health |
| ADP | Auger Depth Profiling |
| DMBE | Double Many-body Expansion (in Potential Energy Surface Calcn.) |
| LCAO CO | Linear Combination Of Atomic Orbitals Crystal Orbital |
| CBF | Cerebral Blood Flow |
| NNRTI | Non-nucleoside Reverse Transcriptase Inhibitor |
| CSRS | Cooperative State Research Service (US Dept. Of Agriculture) |
| PPDS | Physical Property Data Service |