| Acronym | Meaning |
| UMP2 | Unrestricted Moeller-Plesset 2nd-order (perturbation Theory) |
| COPC | Contaminants Of Potential Concern |
| TOM | Total Organic Matter |
| LCTV | Liquid Crystal Television |
| ICAM-1 | Intercellular Adhesion Molecule-1 |
| HEU | Highly Enriched Uranium |
| NHEJ | Nonhomologous End Joining |
| ELV | End-of-life Vehicle |
| IRGA | Infrared Gas Analyzer |
| PMAD | Power Management And Distribution (system) (of Space Station) |