oestrus

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oes·trus

(ĕs′trəs)

Variant of estrus.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

oestrus

(ˈiːstrəs; ˈɛstrəs) ,

estrus

estrum

(Zoology) a regularly occurring period of sexual receptivity in most female mammals, except humans, during which ovulation occurs and copulation can take place; heat

[C17: from Latin oestrus gadfly, hence frenzy, from Greek oistros]

ˈoestrous, ˈoestral, ˈestrous, ˈestral adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

es•trus

(ˈɛs trəs)
n.

a recurring period of maximum sexual receptivity in most female mammals other than humans; heat.

[1885–90; < Latin oestrus < Greek oîstros gadfly, sting, frenzy]

estrus, oestrus

the condition of being in rut or sexual arousal, applied particularly to the female. Also spelled estrum, oestrum. — estrous, oestrous, adj.

estrus

also oestrus
noun

A regular period of sexual excitement in female mammals:

heat, rut, season.

Translations

οίστρος

estro

oestrus

estrus (US) [ˈiːstrəs] N → estro m

Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005

References in periodicals archive ?

Day 1 (referred to as D1) was identified as the day on which estrum (the early stage of corpus luteum after ovulation) was discerned.

Effect of a Traditional Chinese Medicine Formula (Bu Shen Zhu Yun) on Mifepristone-Induced Abnormal Pituitary Gonadotropin Secretion in Rats

Females may show signs of estrum over the year, reducing the calving intervals, as observed in the Dorper, White Dorper and Santa Ines breed groups, originally from the Southern Hemisphere; this allows for production of a higher number of lambs.

Polymorphism C242T in the Cyp19 gene in meat sheep/Polimorfismo no gene cyp19 em ovinos de corte

The treatment was given on day of estrum 6 hours after uterine lavage with sterilized normal saline (NS) using AI sheath.

Noun	1.	oestrus - applies to nonhuman mammals: a state or period of heightened sexual arousal and activity estrus, rut, heat physical condition, physiological condition, physiological state - the condition or state of the body or bodily functions
	2.	Oestrus - type genus of the Oestridae: sheep botflies genus Oestrus arthropod genus - a genus of arthropods family Hypodermatidae, family Oestridae, Hypodermatidae, Oestridae - warble flies Oestrus ovis, sheep botfly, sheep gadfly - larvae are parasitic on sheep