triiodothyronine Hear it!

triiodothyronine definition

tri·iodo·thy·ro·nine (trī ī′ə dō t̸hīrə nēn′)

noun

a crystalline hormone, CHINO, secreted by the thyroid gland, that influences the rate of general metabolic activity: used medically, esp. to treat hypothyroidism

Etymology: tri- + iodo- + thyr(o)- + -ine

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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