- Trisomy 16
- Trisomy 18
- Trisomy 21
- Trisomy 22
- Trisomy 8
- Trisomy 9
- Trisomy X
- Tristimulus colorimeter
- Trisynaptic circuit
- Triterpenes
- Triterpenoids
- Trithorax-group proteins
- Triticeal cartilage
- Triticum aestivum
- Tritium
- Triton X-100
- Tritrichomonas
- Tritrichomonas foetus
- Trituration
- Trizol
- Trk receptor
- TrkC
- Trocar
- Trochanteric
- Trochanteric bursitis
- Trochlear
- Trochlear nerve
- Trochlear nucleus
- Trodusquemine
- Trofosfamide
- Troglitazone
- Trogocytosis
- Trolamine salicylate
- Troleandomycin
- Trolox
- Trombiculidae
- Tropane
- Tropane alkaloids
- Tropheryma whipplei
- Trophic factor
- Trophoblast
- Trophoblastic neoplasm
- Trophoblastic neoplasms
- Trophozoites
- Tropic acid
- Tropic hormone
- Tropical ataxic neuropathy
- Tropical diseases
- Tropical spastic paraparesis
- Tropical splenomegaly syndrome
- Tropical sprue
- Tropical ulcers
- Tropicamide
- Tropine
- Tropisetron
- Tropolone
- Tropomyosin
- Tropomyosin receptor kinase B
- Troponin
- Troponin C
- Troponin I
- Troponin T
- Troponin complex
- Trospium
- Trospium chloride
- Trough level
- Trovafloxacin
- Troxerutin
- True hermaphroditism
- True negative
- True positive rate
- Truncal ataxia
- Truncated distribution
- Truncus arteriosus
- Trust
- Trypan blue
- Trypanocidal agent
- Trypanosoma
- Trypanosoma brucei
- Trypanosoma brucei brucei
- Trypanosoma cruzi
- Trypanosoma evansi
- Trypanosoma vivax
- Trypanosomiasis
- Trypanothione
- Trypomastigote
- Trypsin
- Trypsin inhibitor
- Trypsinogen
- Tryptamine
- Tryptase
- Tryptone
- Tryptophan
- Tryptophan hydroxylase
- Tryptophanase
- Tryptophol
- Tscherne classification
- Tsetse fly
- Tsukamurella
- Tubal factor infertility
- Tubal ligation
- Tubal pregnancy
- Tube furnace
- Tuber cinereum
- Tuberculin
- Tuberculoid leprosy
- Tuberculoma
- Tuberculosis
- Tuberculosis elimination
- Tuberculosis treatment
- Tuberculosis vaccine
- Tuberculosis verrucosa cutis
- Tuberculostearic acid
- Tuberculous lymphadenitis
- Tuberculous meningitis
- Tuberculous pericarditis
- Tuberculous spondylitis
- Tuberculum sellae
- Tuberoinfundibular pathway
- Tuberomammillary nucleus
- Tuberous sclerosis
- Tuberous sclerosis protein
- Tubo-ovarian abscess
- Tubocurarine
- Tubocurarine chloride
- Tuboovarian abscess
- Tuboplasty
- Tubular adenoma
- Tubular carcinoma
- Tubular fluid
- Tubular heart
- Tubular proteinuria
- Tubules
- Tubulin
- Tubulin-tyrosine ligase
- Tubuloglomerular feedback
- Tubulointerstitial nephritis
- Tubulovillous adenoma
- Tucatinib
- Tuftsin
- Tui na
- Tularemia
- Tulle gras
- Tullio phenomenon
- Tumefactive multiple sclerosis
- Tumescence
- Tumescent anesthesia
- Tumescent liposuction
- Tumor board review
- Tumor cells