Estrual



[es-truh s] /ˈɛs trəs/

noun, Zoology.
1.
Also, estrum
[es-truh m] /ˈɛs trəm/ (Show IPA), oestrus. the period of heat or rut; the period of maximum sexual receptivity of the female.
2.
.
/ˈɛstrəs; ˈiːstrəs/
noun
1.
the usual US spelling of oestrus
n.

1850, “frenzied passion,” from Latin oestrus “frenzy, gadfly,” from Greek oistros “gadfly, breeze, sting, mad impulse,” perhaps from a PIE *eis, forming words denoting passion (cf. Avestan aešma- “anger,” Lithuanian aistra “violent passion,” Latin ira “anger”). First attested 1890 with specific meaning “rut in animals, heat.” Earliest use (1690s) was for “a gadfly.” Related: Estrous (1900).

estrus es·trus or oes·trus (ěs’trəs)
n.
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.
estrus
(ěs’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.

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    [es-truh s] /ˈɛs trəs/ noun, Zoology. 1. Also, estrum [es-truh m] /ˈɛs trəm/ (Show IPA), oestrus. the period of heat or rut; the period of maximum sexual receptivity of the female. 2. . /ˈɛstrəs; ˈiːstrəs/ noun 1. the usual US spelling of oestrus n. 1850, “frenzied passion,” from Latin oestrus “frenzy, gadfly,” from Greek oistros […]

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    [es-choo-er-ee] /ˈɛs tʃuˌɛr i/ noun, plural estuaries. 1. that part of the mouth or lower course of a river in which the river’s current meets the sea’s tide. 2. an arm or inlet of the sea at the lower end of a river. /ˈɛstjʊərɪ/ noun (pl) -aries 1. the widening channel of a river where […]



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