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triiodothyronine

 - 3 dictionary results

tri⋅i⋅o⋅do⋅thy⋅ro⋅nine

[trahy-ahy-oh-doh-thahy-ruh-neen, -ahy-od-oh-]
–noun
1. Biochemistry. a thyroid hormone, C15H12I3NO4, similar to thyroxine but several times more potent.
2. Pharmacology. a preparation of this hormone, used in treating hypothyroidism. Abbreviation: T3

Origin:
1950–55; tri- + iodo- + thyronine (perh. deriv., with -one, of thyroxine )
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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tri·i·o·do·thy·ro·nine   (trī'ī-ō'dō-thī'rə-nēn', -ī-ŏd'ō-)   
n.  A thyroid hormone, C15H12I3NO4, similar to thyroxine but more potent, used in the treatment of hypothyroidism.

[tri- + iodo- + thyronine, an amino acid (thyr(o)- + -on(e) + -ine2).]
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2009 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Medical Dictionary

Main Entry: tri·io·do·thy·ro·nine
Pronunciation: "trI-"I-&d-O-'thI-r&-"nEn
Function: noun
: a crystallineiodine-containing hormone C15H12I3NO4 that is an amino acid derived from thyroxine and is used especially in the form of its soluble sodium salt in thetreatment of hypothyroidism and metabolic insufficiency called also liothyronine, T3
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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