norethindrone


nor·eth·in·drone

noun \ˌnr-ˈe-thən-ˌdrōn\

Definition of NORETHINDRONE

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

Origin of NORETHINDRONE

nor- + ethinyl + hydr- + -one (as in progesterone)
First Known Use: 1958

nor·eth·in·drone

noun \nr-ˈeth-ən-ˌdrōn, ˌnr-eth-ˈin-\   (Medical Dictionary)

Medical Definition of NORETHINDRONE

: 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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