| TW | tap water; terminal web; test weight; total body water; travelling wave |
|---|---|
| Tw | twist |
| TWA | time weighted average |
| TWBC | total white blood cells; total white blood count |
| TWD | total white and differential [cell count] |
| TWE | tap water enema; tepid water enema |
| TWIST | time without symptoms of disease and subjective toxic effects of treatment |
| TWL | transepidermal water loss |
| TWS | tranquilizer withdrawal syndrome |
| TWs | triphasic waves |