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anestrus

American  
[an-es-truhs] / ænˈɛs trəs /
especially British, anoestrus

noun

Zoology.

  1. (in some female mammals) the interval of sexual inactivity between two breeding cycles.

anestrus British  
/ ænˈiːstrəs /

noun

  1. a variant spelling (esp US) of anoestrus

"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

Other Word Forms

  • anestrous adjective

Etymology

Origin of anestrus

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.