oestrone

World English Dictionary
oestrone or (US) estrone (ˈiːstrəʊn, ˈɛstrəʊn)
 
n
a weak oestrogenic hormone secreted by the mammalian ovary and having the same medical uses as oestradiol. Formula: C18H22O2
 
[C20: from oestr(us) + -one]
 
estrone or (US) estrone
 
n
 
[C20: from oestr(us) + -one]

Collins English Dictionary - Complete & Unabridged 10th Edition
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WordNet
oestrone

noun
a naturally occurring weak estrogenic hormone secreted by the mammalian ovary; synthesized (trade name Estronol) and used to treat estrogen deficiency [syn: estrone
WordNet® 3.0, © 2006 by Princeton University.
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