Definition of menstruate verb from the Oxford Advanced Learner's Dictionary

 

menstruate

 verb
verb
BrE BrE//ˈmenstrueɪt//
 
; NAmE NAmE//ˈmenstrueɪt//
 
[intransitive](formal)Verb Forms present simple I / you / we / they menstruate
BrE BrE//ˈmenstrueɪt//
 
; NAmE NAmE//ˈmenstrueɪt//
 
he / she / it menstruates
BrE BrE//ˈmenstrueɪts//
 
; NAmE NAmE//ˈmenstrueɪts//
 
past simple menstruated
BrE BrE//ˈmenstrueɪtɪd//
 
; NAmE NAmE//ˈmenstrueɪtɪd//
 
past participle menstruated
BrE BrE//ˈmenstrueɪtɪd//
 
; NAmE NAmE//ˈmenstrueɪtɪd//
 
-ing form menstruating
BrE BrE//ˈmenstrueɪtɪŋ//
 
; NAmE NAmE//ˈmenstrueɪtɪŋ//
 
 
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when a woman menstruates, there is a flow of blood from her womb, usually once a month Word Origin mid 17th cent.: from late Latin menstruat- ‘menstruated’, from the verb menstruare, from Latin menstrua ‘menses’.
See the Oxford Advanced American Dictionary entry: menstruate