a·men·or·rhoe·a
noun/əˌmenəˈriːə/
/eɪˌmenəˈriːə/
(British English) (North American English amenorrhea)
[uncountable] (medical)- a condition in which an adult woman does not menstruate (= there is no flow of blood from her womb every month)
闭经 Word Originearly 19th cent.: from a- ‘without’ + menorrhoea.