estradiol

[es-truh-dahy-awl, -ol]
noun
1.
Biochemistry. an estrogenic hormone, C 18 H 24 O 2 , produced by the maturing Graafian follicle, that causes proliferation and thickening of the tissues and blood vessels of the endometrium.
2.
Pharmacology. a commercial form of this compound, obtained from the urine of pregnant humans and mares or synthesized, used in the treatment of estrogen deficiency and certain menopausal and postmenopausal conditions.

Origin:
1930–35; estra- (combining form representing estrin) + di-1 + -ol1

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World English Dictionary
estradiol (ˌɛstrəˈdaɪɒl, ˌiːstrə-)
 
n
the US spelling of oestradiol

oestradiol or (US) estradiol (ˌiːstrəˈdaɪɒl, ˌɛstrə-)
 
n
the most potent oestrogenic hormone secreted by the mammalian ovary: synthesized and used to treat oestrogen deficiency and cancer of the breast. Formula: C18H24O2
 
[C20: from New Latin, from oestrin + di-1 + -ol1]
 
estradiol or (US) estradiol
 
n
 
[C20: from New Latin, from oestrin + di-1 + -ol1]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

estradiol es·tra·di·ol (ěs'trə-dī'ôl', -ōl')
n.
The most potent naturally occurring estrogen.

The American Heritage® Stedman's Medical Dictionary
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Example sentences
Estradiol is the hormone that increases through the first half of the cycle and peaks at ovulation.
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