triiodothyronine

triiodothyronine

[trahy-ahy-oh-doh-thahy-ruh-neen, -ahy-od-oh-]
noun
1.
Biochemistry. a thyroid hormone, C 15 H 12 I 3 NO 4 , similar to thyroxine but several times more potent.
2.
Pharmacology. a preparation of this hormone, used in treating hypothyroidism. Abbreviation: T 3

Origin:
1950–55; tri- + iodo- + thyronine (perhaps derivative, with -one, of thyroxine)

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World English Dictionary
triiodothyronine (ˌtraɪaɪˌəʊdəʊˈθaɪrəˌniːn)
 
n
an amino acid hormone that contains iodine and is secreted by the thyroid gland with thyroxine, to which it has a similar action. Formula: C15H12I3NO4
 
[C20: from tri- + iodo- + thyro- + -ine2]

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