oestrus

oestrus

[es-truhs, ee-struhs]
noun

Origin:
1690–1700; < Latin < Greek oîstros gadfly, sting, madness

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World English Dictionary
oestrus, estrus or estrum (ˈiːstrəs, ˈɛstrəs, ˈiːstrəm, ˈɛstrəm)
 
n
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]
 
estrus, estrus or estrum
 
n
 
[C17: from Latin oestrus gadfly, hence frenzy, from Greek oistros]
 
estrum, estrus or estrum
 
n
 
[C17: from Latin oestrus gadfly, hence frenzy, from Greek oistros]
 
'oestrous, estrus or estrum
 
adj
 
'oestral, estrus or estrum
 
adj
 
'estrous, estrus or estrum
 
adj
 
'estral, estrus or estrum
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

oestrus
see estrus.
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

oestrus oes·trus (ěs'trəs)
n.
Variant of estrus.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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