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estrone

[es-trohn]
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noun
  1. Biochemistry. an estrogenic hormone, C18H22O2, produced by the ovarian follicles and found during pregnancy in urine and placental tissue.
  2. Pharmacology. a commercial form of this compound, obtained from the urine of pregnant women or synthesized from ergosterol, used in the treatment of estrogen deficiency and certain menopausal and postmenopausal conditions.
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Also estrin.

Origin of estrone

First recorded in 1930–35; estr(in) + -one
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for estrone

estrone

noun
  1. the usual US spelling of oestrone
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
estrone in Medicine

estrone

(ĕs′trōn′)
n.
  1. A metabolite of estradiol, commonly found in urine, having considerably less biological activity than estradiol but similar properties and uses.theelin
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.