| Acronym | Meaning |
| OEO | Overlap-enhanced Orbital |
| SCC | Sludge Conditioning Controller |
| PMEL | Pacific Marine Environmental Laboratory |
| WCA | Water Conservation Area(s) |
| RITD | Resonant Interband Tunneling Diode |
| ODS | Oxide Dispersion-strengthened |
| EINECS | European Inventory Of Existing Commercial Chemical Substances |
| TEG | Triethylene Glycol |
| STM | Space-translation Method (in Atomic Collision Calcn.) |
| IFOT | Invariant Fock Operator Technique |