norethindrone

noun nor·eth·in·drone \ˌnȯr-ˈe-thən-ˌdrōn\

Definition of NORETHINDRONE

: a synthetic progestational hormone C₂₀H₂₆O₂ used in birth control pills often in the form of its acetate

nor- + ethinyl + hydr- + -one (as in progesterone)

First Known Use: 1958

Medical Dictionary

noun nor·eth·in·drone \nȯr-ˈeth-ən-ˌdrōn, ˌnȯr-eth-ˈin-\

: a synthetic progestational hormone C₂₀H₂₆O₂ used in birth control pills often in the form of its acetate C₂₂H₂₈O₃—see ortho-novum

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