自己生殖：同self-reproduction- Tyzzeria
- Tzanck cell,test
- tzetze
- Türck's bundle, cell, column, degeneration
- Türk's cell(irritation leukocyte)
- U
- Uarthritis
- uberous
- uberty
- ubiquinol
- ubiquinol-cytochrome c reductase
- ubiquinol dehydrogenase
- ubiquinone
- udder
- UDP
- UDP-bilirubin glucuronosyltransferase
- UDP-galactose 4-epimerase
- UDP-glucose 4-epimerase
- UDP-glucose-hexose-1-phosphate uridylyltr-ansferase
- UDP-glucose pyrophosphorylase
- UDP-glucuronate-bilirubin-glucuronosyltran-sferase
- UDP-glucuronyl transferase
- UDP-N-acetylglucosamine-lysosomal-enzyme;N-acetyl-glucosaminephosphotransfera
- Udranszky's test
- Uffelmann's test(reagent)