Dictionary
tri•i•o•do•thy•ro•nine
Pronunciation: (trī"ī-ō"dō-thī'ru-nēn", -ī-od"ō-), [key]—
n.
1. Biochem.a thyroid hormone, C
15H
12I
3NO
4, similar to thyroxine but several times more potent.
2. Pharm.a preparation of this hormone, used in treating hypothyroidism.
Abbr.: T
3Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.