| Term | Definition / Meaning / Stand for |
| TBI |
Spinal Cord Injury (Thoracic Spine) |
| TBF |
Targeted Biologics for Fibrosis |
| TBI |
Temporal Bone Injury |
| TIN |
Temporal Lobe Infarction |
| TM |
Temporal Mandibular Joint |
| TAP |
Temporalis Artery Pulsation |
| TMG |
Temporomandibular Joint |
| TUNEL |
Terminal deoxynucleotidyl transferase dUTP nick-end labeling |
| TC |
Tetanus Concentrate |
| TRP |
Thermal Receptor Potential |
| T10 |
Thoracic Vertebra 10 |
| T11 |
Thoracic Vertebra 11 |
| T12 |
Thoracic Vertebra 12 |
| T1 |
Thoracic Vertebra 1 |
| T2 |
Thoracic Vertebra 2 |
| T3 |
Thoracic Vertebra 3 |
| T4 |
Thoracic Vertebra 4 |
| T5 |
Thoracic Vertebra 5 |
| T6 |
Thoracic Vertebra 6 |
| T7 |
Thoracic Vertebra 7 |
| T8 |
Thoracic Vertebra 8 |
| T9 |
Thoracic Vertebra 9 |
| TCT |
Throat Culture Test |
| TAD |
Thrombin Activating Domain |
| TBA |
Thromboelastography |
| TMB |
Thrombomodulin |
| TSP |
Thrombopoietin |
| TMA |
Thrombotic Microangiopathy |
| TH |
Thyroxine |
| TAD |
Tibial Axial Displacement |
| TSK |
Tissue Specific Kinase |
| TBF |
Total Blood Flow |
| TCG |
Total Cell Growth |
| TCA |
Total Chemical Assay |
| THA |
Total Hip Arthroplasty |
| TLA |
Total Lymphoid Ablation |
| TLM |
Total Lymphoid Irradiation |
| TNE |
Total Nutritional Evaluation |
| TPL |
Total Parenteral Nutrition |
| TAE |
Transarterial Embolization |
| TCD |
Transcranial Doppler |
| TDS |
Transdermal System |
| TRF |
Transferrin Receptor |
| TF |
Transferrin |
| TNE |
Transient Neurological Event |
| TSPO |
Translocator Protein |
| TMO |
Transmembrane Oncogene |
| TFA |
Transtibial Amputation |
| TAP |
Transversus Abdominis Plane |
| TAC |
Triage Acuity Category |
| TCV |
Tricuspid Valve |
| TRU |
Truncus Arteriosus |
| TBB |
Tuberculosis Bacilli |
| TBI |
Tuberculosis Infection |
| TBN |
Tuberculosis Necrosis |
| TBN |
Tuberculosis Negative |
| TLD |
Tumor Lysis Syndrome |
| TUL |
Tumor-Associated Leukocyte |
| TPH |
Tyrosine Hydroxylase |
| TPH |
Tyrosine Phosphorylation |
| TCRB |
T-Cell Receptor Beta Chain |
| TCR |
T-Cell Receptor |
| Tll |
Tailless |
| TPR |
Temperature, Pulse, Respiration |
| TDF |
Tenofovir Disoproxil Fumarate |
| TCN |
Tetracycline |
| TTX |
Tetrodotoxin |
| TDM |
Therapeutic Drug Monitoring |
| TARMs |
Thoracic Alary-Related Muscles |
| TOS |
Thoracic Outlet Syndrome |