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proestrus

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noun pro·es·trus \(ˌ)prō-ˈes-trəs\

Definition of proestrus

  1. :  a period immediately preceding estrus characterized by preparatory physiological changes



Origin and Etymology of proestrus

New Latin


First Known Use: 1923


Medical Dictionary

proestrus

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noun pro·es·trus \-ˈes-trəs\

Medical Definition of proestrus

  1. :  a preparatory period immediately preceding estrus and characterized by growth of graafian follicles, increased estrogenic activity, and alteration of uterine and vaginal mucosa



Variants of proestrus

or

proestrum

\-ˈes-trəm\play or chiefly British

pro–oestrus

or

pro–oestrum

\-ˈēs-\play

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