| Acronym | Meaning |
| NDT | Nondestructive Testing |
| PIDIE | Plutonium Isotopic Detn. Intercomparison Exercise |
| EK | Extended Koopmans (method In Ionization Potential Calcns.) |
| CIAC | Centro De Informacion Ambiental Del Caribe |
| SCRF | Self-consistent Reaction Field |
| POC | Purgeable Organic Carbon |
| LEED | Low-energy Electron Diffraction |
| ESMO | Excited-state Molecular Orbital |
| BCF | Bioconcentration Factor |
| BEES | Ballistic Electron Emission Spectroscopy |