Definition of menstrual adjective from the Oxford Advanced American Dictionary

     

    menstrual

     adjective
    adjective
    NAmE//ˈmɛnstruəl//
     
    , NAmE//ˈmɛnstrəl//
     
     
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  1. 1connected with the time when a woman menstruates each month The average length of a woman's menstrual cycle is 28 days. menstrual blood
  2. 2(formal) a menstrual period compare premenstrual
See the Oxford Advanced Learner's Dictionary entry: menstrual