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triiodothyronine

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

Definition of triiodothyronine

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



Origin and Etymology of triiodothyronine

tri- + iod- + thyronine an amino acid of which thyroxine is a derivative


First Known Use: 1952


Medical Dictionary

triiodothyronine

play
noun tri·io·do·thy·ro·nine \ˌtrī-ˌī-əd-ō-ˈthī-rə-ˌnēn\

Medical Definition of triiodothyronine

  1. :  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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