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estrone

[es-trohn] /ˈɛs troʊn/
noun
1.
Biochemistry. an estrogenic hormone, C 18 H 22 O 2 , 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.
Also, estrin.
Origin
1930-1935
1930-35; estr(in) + -one
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for estrone
  • The other important, but less powerful, estrogens are estrone and estriol.
  • The other important but less powerful estrogens are estrone and estriol.
British Dictionary definitions for estrone

estrone

/ˈɛstrəʊn; ˈiːstrəʊn/
noun
1.
the usual US spelling of oestrone

oestrone

/ˈiːstrəʊn; ˈɛstrəʊn/
noun
1.
a weak oestrogenic hormone secreted by the mammalian ovary and having the same medical uses as oestradiol. Formula: C18H22O2
Word Origin
C20: from oestr(us) + -one
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
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estrone in Medicine

estrone es·trone (ěs'trōn')
n.
A metabolite of estradiol, commonly found in urine, having considerably less biological activity than estradiol but similar properties and uses. Also called theelin.

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