| Acronym | Meaning |
| STEAM | Stratosphere-Troposphere Exchange And Climate Monitor |
| MRSI | Magnetic Resonance Spectroscopic Imaging |
| CEA | Cost-Effectiveness Analysis |
| HIRDLS | High-Resolution Dynamics Limb Sounder |
| DIOP | Diisooctyl Phthalate |
| VAR | Vacuum Arc Remelting |
| HF MO LCAO | Hartree-Fock MO LCAO |
| AST | Aboveground Storage Tank |
| HDF | Halogenated Dibenzofuran(s) |
| UMP4SDTQ | Unrestricted Moeller-Plesset 4th-order (perturbation Theory With) Single |