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4 entries found for estrogen. Select an entry and then click 'Go'.
 
Main Entry: es·tro·gen
Pronunciation: primarystresses-trschwa-jschwan
Variant(s): or chiefly British oes·tro·gen /primarystressemacron-strschwa-jschwan/
Function: noun
: any of various natural steroids (as estradiol) that are formed from androgen precursors, that are secreted chiefly by the ovaries, placenta, adipose tissue, and testes, and that stimulate the development of female secondary sex characteristics and promote the growth and maintenance of the female reproductive system; also : any of various synthetic or semisynthetic steroids (as ethinyl estradiol) that mimic the physiological effect of natural estrogens

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