mestranol

UK:**UK and possibly other pronunciationsUK and possibly other pronunciations/ˈmɛstrəˌnɒl/US:USA pronunciation: respellingUSA pronunciation: respelling(mes′trə nôl′, -nol′)


WordReference Random House Unabridged Dictionary of American English © 2026
mes•tra•nol  (mes′trə nôl′, -nol′),USA pronunciation n. [Pharm.]
  1. Drugsan estrogen, C21H26O2, used in oral contraceptives in combination with a progestin.
  • contraction and rearrangement of methoxy- and ethynylestradiol, components of the chemical name 1960–65

Collins Concise English Dictionary © HarperCollins Publishers::
mestranol /ˈmɛstrəˌnɒl; -ˌnəʊl/ n
  1. a synthetic oestrogen used in combination with progestogens as an oral contraceptive. Formula: C21H26O2
Etymology: 20th Century: from m( ethyl) + ( o) estr( ogen) + (pregn)an(e) (C21H36) + -ol

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