anestrus

[an-es-truh s]

noun Zoology.

(of a female mammal) the interval of sexual inactivity between two periods of heat or rut.

Also anoestrus.

Origin of anestrus

First recorded in 1925–30; an-¹ + estrus

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for anestrus

anestrus

noun

a variant spelling (esp US) of anoestrus

Derived Formsanestrous, adjective

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012