[ es-truh s ]
/ ˈɛs trəs /
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Origin of estrus
1885–90; < Latin oestrus oestrus
OTHER WORDS FROM estruses·tru·al [es-troo-uh l] /ˈɛs tru əl/, adjective
Words nearby estrus
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020
British Dictionary definitions for estrual
/ (ˈɛstrəs, ˈiːstrəs) /
the usual US spelling of oestrus
Derived forms of estrusestrous, 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
Medical definitions for estrual
The periodic state of sexual excitement in the female of most mammals, excluding humans, that immediately precedes ovulation and during which the female is most receptive to mating; heat.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for estrual
[ ĕs′trəs ]
A regularly recurring period in female mammals other than humans during which the animal is sexually receptive. Estrus occurs around the time of ovulation. Also called heat
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.