menstruation
UK /ˌmɛnstɹuːˈeɪʃən/ · US /ˌmɛnstɹuˈeɪʃən/ noun
Forms menstruations menstration
- noun The periodic discharging of the menses, the flow of blood and cells from the lining of the uterus in unfertilized females of humans and other primates.
- noun An instance of menstruation, the part of each month during which a fertile woman menstruates.
Synonyms
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Etymology
From menstruum + -ation, modelled after Late Latin menstruatio. The word is a cognate with French menstruation, Spanish menstruación, which displaced Old English mōnaþblōd (literally “monthblood”).
Webster’s 1913
- noun The discharge of the menses; also, the state or the period of menstruating.
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “menstruation”, CC BY-SA 4.0. Details