cyproterone

noun
cy·prot·er·one | \ sī-ˈprä-tə-ˌrōn \

Definition of cyproterone 

: a synthetic steroid C22H27ClO3 that inhibits the action and secretion of testosterone by blocking the activity of androgen receptors

First Known Use of cyproterone

1966, in the meaning defined above

History and Etymology for cyproterone

probably from cycl- + progesterone

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The first known use of cyproterone was in 1966

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cyproterone

noun
cy·prot·er·one | \ sī-ˈprät-ə-ˌrōn \

Medical Definition of cyproterone 

: a synthetic steroid used in the form of its acetate C24H29ClO4 to inhibit the action and secretion of testosterone by blocking the activity of androgen receptors

More from Merriam-Webster on cyproterone

Britannica.com: Encyclopedia article about cyproterone

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