| TTI | Tension Time Index |
|---|---|
| TTK | Tramtrack |
| TTM | Tetrathiomolybdate |
| TTM | The Transtheoretical Model |
| TTM | Total Tumor Mass |
| TTMS | 3-[2-(2,4,6-Trimethylphenyl)thioethyl]-4-methylsydnone |
| TTNPB | 6,7,8-Tetrahydro-5,5,8,8-tetramethyl-2-naphthylenyl)-1-propenyl] benzoic acid |
| TTO | Time Trade OFF |
| TTP | Thiamine triphosphate |
| TTP | Thrombotic Thrombocytopenic Purpura |