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thyroxine

 - 4 dictionary results

thy⋅rox⋅ine

[thahy-rok-seen, -sin]
–noun
1. Biochemistry. the thyroid gland hormone that regulates the metabolic rate of the body.
2. Pharmacology. a commercial form of this compound, obtained from the thyroid glands of animals or synthesized, used in the treatment of hypothyroidism. Symbol: T4
Also, thy⋅rox⋅in [thahy-rok-sin] .


Origin:
1915–20; thyr- + ox- + in(dol)e (orig. thought to be a chemical component)
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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thy·rox·ine   (thī-rŏk'sēn', -sĭn)   
n.  An iodine-containing hormone, C15H11I4NO4, produced by the thyroid gland, that increases the rate of cell metabolism and regulates growth and that is made synthetically for treatment of thyroid disorders.

[thyr(o)- + ox(y)- + in(dole).]
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: thy·rox·ine
Variant: or thy·rox·in /thI-'räk-"sEn, -s&n/
Function: noun
: an iodinecontaining hormone C15H11I4NO4 that is an amino acid produced by the thyroid gland as a product of the cleavage of thyroglobulin, increases the metabolicrate, and is used to treat thyroid disorders called also T-4
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

thyroxine thy·rox·ine (thī-rŏk'sēn', -sĭn) or thy·rox·in (-rŏk'sĭn)
n.
Abbr. T4
An iodine-containing hormone that is produced by the thyroid gland, increases the rate of cell metabolism, regulates growth, and is made synthetically for treatment of thyroid disorders.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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