| TDB | Toxicology Data Bank |
|---|---|
| TDC | taurodeoxycholic acid; total dietary calories |
| TDCO | thermodilution cardiac output [measurement] |
| TDD | telecommunication device for the deaf; tetradecadiene; thoracic duct drainage; total digitalizing dose; toxic doses of drugs |
| TDE | tetrachlorodiphenylethane; total digestible energy; triethylene glycol diglycidyl |
| TDF | Testicular-Determining Factor = HY Factor |
| TDF | testis-determining factor; thoracic duct fistula; thoracic duct flow; time-dose fractionation; tissue-damaging factor; tumor dose fractionation |
| TDFA | testis-determining factor, autosomal |
| TDFX | testis-determining factor X |
| TDGF | teratocarcinoma-derived growth factor |