Norethindrone Definition

nôr-ĕthĭn-drōn
noun
A progestational hormone, C20 H26 O2 , similar in effect to progesterone, used especially in oral contraceptives.
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Origin of Norethindrone

  • nor– alteration of ethyn(e) (an)dr(ostene) a steroid –one

    From American Heritage Dictionary of the English Language, 5th Edition

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