| Acronym | Meaning |
| MTT | Methylthiazol Tetrazolium (assay) |
| DK | Denmark (ISO 3166 Digram) |
| EGY | Egypt (ISO 3166 Trigram) |
| IAQ | Indoor Air Quality - Infrequently Asked Questions |
| DMV | Department Of Motor Vehicles |
| NRO | U.S. National Reconnaissance Office |
| ICP | Inductively Coupled Plasma - Insane Clown Posse |
| RDT | Remote Digital Terminal |
| W | Tungsten (from German Wolfram) - Watt - West |
| SBCS | Single-Byte Character Set |