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oestrogen

noun
/ˈiːstrədʒən/
/ˈestrədʒən/
(British English)
(North American English estrogen)
[uncountable]
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  1. a hormone produced in women’s ovaries that causes them to develop the physical and sexual features that are typical of females and that causes them to prepare their body to have babies雌激素 compare progesterone, testosterone
    Word Origin1920s: from oestrus (from Greek oistros ‘gadfly or frenzy’) + -gen.

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