| Acronym | Meaning |
| IPPP | Iterative Pariser-Parr-Pople Method |
| STLC | Soluble Threshold Limit Concentration |
| LCDAO | Linear Combination Of Distorted Atomic Orbitals |
| TESS | Triboelectrostatic Separation |
| GALEX | Galaxy Evolution Explorer |
| MA | Mission Abort |
| SEAREX | Sea/Air Exchange Program |
| HADES | High Activity Disposal Exptl. Site [for Radioactive Waste] |
| ICLAS | Intracavity Laser Absorption Spectroscopy |
| SOM | Soil Organic Matter |