| Acronym | Meaning |
| LEP | Local Electron Pair (model For Intra- & Intermol. Interactions) |
| ICP-ROA | Incident Circular Polarization Raman Optical Activity |
| CAPA | Critical Aquifer Protection Area |
| TSA | Trichostatin A |
| AIMP | Ab Initio Model Potential (for Valence-electron Mol. Calcns.) |
| UFL | Upper Flammable Limit |
| RFEC | Remote Field Eddy Current |
| MIS 5 | Marine Isotope Substage 5e |
| NTU | Nephelometric Turbidity Unit |
| HYTEC | Hydrogen Thermoelectrochemical Converter (regenerative Fuel Cell) |