Dictionary

triiodothyronine

noun tri·io·do·thy·ro·nine \ˌtrī-ˌī-ə-dō-ˈthī-rə-ˌnēn\

Definition of TRIIODOTHYRONINE

:  an iodine-containing hormone C15H12I3NO4 that is an amino acid derived from thyroxine

Origin of TRIIODOTHYRONINE

tri- + iod- + thyronine an amino acid of which thyroxine is a derivative
First Known Use: 1952

triiodothyronine

noun tri·io·do·thy·ro·nine \ˌtrī-ˌī-əd-ō-ˈthī-rə-ˌnēn\   (Medical Dictionary)

Medical Definition of TRIIODOTHYRONINE

:  a crystalline iodine-containing hormone C15H12I3NO4 that is an amino acid derived from thyroxine and is used especially in the form of its soluble sodium salt C15H11I3NNaO4 in the treatment of hypothyroidism and metabolic insufficiency—called also liothyronine, T3

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