Meaning of “menstruate” in the English Dictionary

"menstruate" in British English

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menstruateverb [ I ]

uk /ˈmen.stru.eɪt/ us /ˈmen.stru.eɪt/ formal

When a woman menstruates, blood flows from her uterus for a few days every month.

(Definition of “menstruate” from the Cambridge Advanced Learner’s Dictionary & Thesaurus © Cambridge University Press)

"menstruate" in American English

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menstruateverb [ I ]

us /ˈmen·struˌeɪt/

to have a flow of blood from the uterus, usually for three to five days every four weeks, in women who are not pregnant

menstrual
adjective [ not gradable ] us /ˈmen·strəl, -stru·əl/

a menstrual cycle/period

(Definition of “menstruate” from the Cambridge Academic Content Dictionary © Cambridge University Press)