| Acronym | Meaning |
| OCEPA | Office Of Communications |
| ETV | Electrothermal Vaporization |
| ETBM | Empirical Tight-binding Method (in Electronic Structure Calcn.) |
| ERDA | Elastic Recoil Detection Analysis |
| EPC | Evaporative Pattern Casting |
| PSI | Pounds Per Square Inch |
| MMC | Molecular Mechanics For Clusters Model |
| SOD | Superoxide Dismutase |
| LO | Localized Orbital |
| CHA | Concentric Hemispherical Analyzer |