| Acronym | Meaning |
| NAWQA | National Water Quality Assessment (US Geological Survey) |
| BDTT | Brittle-to-ductile Transition Temperature |
| COV | Coefficient Of Variation |
| TEOM | Tapered Element Oscillating Microbalance |
| PCCI | Premixed Charge Compression Ignition |
| NCCAM | National Center For Complementary And Alternative Medicine |
| COIL | Chem. Oxygen-iodine Laser |
| HED | Howardite-eucrite-diogenite (suite Of Achondrite Meteorites) |
| DRESS | Depth-resolved Surface-coil Spectroscopy |
| BIV | Bovine Immunodeficiency Virus |