| Acronym | Meaning |
| MCE | Mixed Cellulose Ester |
| FHMO | Fenske-Hall MO |
| RATM | Renormalized Average T-matrix (for D.-of-states Calcns.) |
| NDE | Nondestructive Evaluation |
| EI | Electron Impact |
| SOHO | Solar And Heliosphere Observatory |
| BSS | Backscattering Spectroscopy |
| IDF | International Dairy Federation |
| COPW | Complete Orthogonalized Plane Wave |
| ADAPTS | Air Deliverable Antipollution Transfer System |