- thymocyte
- thymocytic peptide
- thymol
- thymol blue
- thymolphthalein
- thymopoietin
- thymosin
- thymus
- thymus dependent lymphocyte
- thymus dependent region
- thynnin
- Thyone
- Thyra
- thyratron
- thyrector
- thyreophoran
- thyridial cell
- thyriothecium
- thyristor
- thyristor controlled compensator
- thyristor controlled reactor
- thyristor switched capacitor
- thyristor valve
- thyristor voltage regualtor
- thyrite