| 单词 | menstruation | 
| 释义 | menstruationnoun  men·stru·a·tion  ˌmen(t)-strü-ˈwā-shən  men-ˈstrā-   : a cyclical discharging of blood, secretions, and tissue debris from the uterus that recurs in nonpregnant breeding-age primate females at approximately monthly intervals and that is considered to represent a readjustment of the uterus to the nonpregnant state following proliferative changes accompanying the preceding ovulation    also : period sense 6c  menstruation nounas in periodan occurrence of menstruating a first menstruation can be somewhat scary for girls who are unprepared Synonyms & Similar Words Relevance 
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