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Definition of progesterone noun from the Oxford Advanced Learner's Dictionary

progesterone

noun

/prəˈdʒestərəʊn/

/prəˈdʒestərəʊn/

[uncountable]

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a hormone produced in the bodies of women and female animals which prepares the body to become pregnant and is also used in contraception compare oestrogen, testosteroneTopics Biologyc2
Word Origin1930s: blend of progestin and the German synonym Luteosteron (from corpus luteum + sterol).

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