Definition of menstrual adjective from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈmenstruəl//
; NAmE NAmE//ˈmenstruəl//
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connected with the time when a woman menstruates each month The average length of a woman's menstrual cycle is 28 days. menstrual blood (formal) a menstrual period compare premenstrual Word Originlate Middle English: from Latin menstrualis, from menstruum ‘menses’, from mensis ‘month’.
See the Oxford Advanced American Dictionary entry: menstrual