名詞 menses:

1. the monthly discharge of blood from the uterus of nonpregnant women from puberty to menopause--Aristotle
   同義詞：menstruation, menstruum, catamenia, period, flow

men.ses

pl.n.(used with a sing. or pl. verb)（復數名詞）（與單數或復數動詞連用）
The monthly flow of blood and cellular debris from the uterus that begins at puberty in women and the females of other primates. In women, menses ceases at menopause.Also called catamenia
月經：從青春期開始，每月從婦女或其他靈長類雌性動物的子宮內流出的血與細胞殘跡。婦女的月經在絕經期才永久性停止也作 catamenia

來源：
Latin mônsôs [pl. of] mônsis [month] * see mô- 2
拉丁語 mônsôs [] mônsis的復數 [每月地] *參見 mô- 2