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单词 proestrus
释义

proestrus

noun

pro·​es·​trus (ˌ)prō-ˈe-strəs How to pronounce proestrus (audio)
: a period immediately preceding estrus characterized by preparatory physiological changes

Word History

Etymology

New Latin

First Known Use

1906, in the meaning defined above

Medical Definition

proestrus

noun

pro·​es·​trus -ˈes-trəs How to pronounce proestrus (audio)
variants or proestrum
-ˈes-trəm How to pronounce proestrus (audio)
or chiefly British pro-oestrus or pro-oestrum
-ˈēs- How to pronounce proestrus (audio)
: a preparatory period immediately preceding estrus and characterized by growth of graafian follicles, increased estrogenic activity, and alteration of uterine and vaginal mucosa
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