| Acronym | Meaning |
| IHSI | Induction Heating Stress Improvement |
| HASI | Huygens Atmospheric Structure Instrument |
| CCFL | Countercurrent Flow Limitation |
| NIEM | Noniterative Integral Equation Method |
| QSM | Quantum Shell Model |
| GITT | Galvanostatic Intermittent Titration Technique |
| OVOS | Optimized Virtual Orbital Space Approximation (for Correlated Calcns.) |
| PAFT | Program For Alternative Fluorocarbon Toxicology Testing |
| ABES | Alliance For Balanced Environmental Solutions |
| JI | Joint Implementation [with Regard To Greenhouse Gas Emission Redn.] |