| TCLo | toxic concentration low |
|---|---|
| TD | tabes dorsalis; tardive dyskinesia; T-cell dependent; temporary disability; terminal device; tetanus... |
| TD50 | median toxic dose |
| TDD | telecommunication device for the deaf; tetradecadiene; thoracic duct drainage; total digitalizing do... |
| TDL | thoracic duct lymph; thymus-dependent lymphocyte; toxic dose level |