| Acronym | Meaning |
| GESAMP | Group Of Experts On The Scientific Aspects Of Marine Pollution |
| UOVMO | Unoccupied Valence-type Mol. Orbital |
| TRIR | Time-resolved IR |
| RXTE | Rossi X-ray Timing Explorer |
| OPSE | Optically Pumped Stimulated Emission |
| HEUR | Hydrophobe Modified Ethoxylated Urethane [polymer] |
| CSAMT | Controlled-source Audio-magnetotelluric Technique |
| FVRCI | Full Valence Rydberg Configuration Interaction |
| ERAST | Environmental Research Aircraft And Science Technology |
| RSPA | Research And Special Programs Administration (Dept. Of Transportation) |