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testosterone

 - 7 dictionary results

tes⋅tos⋅ter⋅one

  [tes-tos-tuh-rohn]
Use testosterone in a Sentence
–noun
1. Biochemistry. the sex hormone, C19H28O2, secreted by the testes, that stimulates the development of male sex organs, secondary sexual traits, and sperm.
2. Pharmacology. a commercially prepared form of this compound, originally isolated from bull's testes and now also produced synthetically, used in medicine chiefly for treatment of testosterone deficiency and for certain gynecological conditions.
Origin:
1930–35; testo- (comb. form of testis ) + ster(ol) + -one
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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tes·tos·ter·one   (těs-tŏs'tə-rōn')   
n.  A white crystalline steroid hormone, C19H28O2, produced primarily in the testes and responsible for the development and maintenance of male secondary sex characteristics. It is also produced synthetically for use in medical treatment.

[test(is) + ster(ol) + -one.]
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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Cultural Dictionary

testosterone [(tes-tos-tuh-rohn)]

A male hormone that governs secondary sex characteristics. It is produced in the testes.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Word Origin & History

testosterone 
male sex hormone, 1935, from Ger. Testosteron (1935), coined from L. testis "testicle" (see testis) + ster(ol) (see steroid) + chemical ending -one.
Online Etymology Dictionary, © 2001 Douglas Harper
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Medical Dictionary

Main Entry: tes·tos·ter·one
Pronunciation: te-'stäs-t&-"rOn
Function: noun
: a male hormone that is a crystalline hydroxysteroid ketone C19H28O2 produced primarily by the testes or made synthetically and that is the main androgen responsible for inducing and maintaining male secondary sexcharacteristics
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

testosterone tes·tos·ter·one (těs-tŏs'tə-rōn')
n.
A steroid hormone and the most potent naturally occurring androgen that is formed by the interstitial cells of the testes, and possibly by the ovary and adrenal cortex, may be produced in nonglandular tissues from precursors such as androstenedione, and is used in the treatment of hypogonadism, cryptorchism, carcinomas, and menorrhagia.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Science Dictionary
testosterone   (těs-tŏs'tə-rōn')  Pronunciation Key 
A steroid hormone that is the most potent naturally occurring androgen and that regulates the development of the male reproductive system and male secondary sex characteristics. Testosterone is produced mainly in the testes and is also used as a drug in the treatment of certain medical disorders. Chemical formula: C19H28O2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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