norethindrone

Definitions of norethindrone
  1. noun
    a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis
    synonyms: Norlutin, norethandrolone, norethindrone acetate
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    type of:
    progestin, progestogen
    any of a group of steroid hormones that have the effect of progesterone
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