- —estrual /es"trooh euhl/, adj./es"treuhs/, n. Zool.1. Also, estrum /es"treuhm/, oestrus. the period of heat or rut; the period of maximum sexual receptivity of the female.2. See estrous cycle.[1885-90; < L oestrus OESTRUS]
* * *Period in the sexual cycle of female mammals, except the higher primates, during which they are in heat (ready to accept a male for mating).Some animals (e.g., dogs) have only one heat during a breeding season; others (e.g., ground squirrels) will come into heat repeatedly during the breeding season until impregnated. During estrus the female secretes pheromones that signal her receptivity to the males; her genital area may become swollen, and she may also give behavioral signals.
* * *▪ reproductive cyclealso spelled Oestrus,the period in the sexual cycle of female mammals, except the higher primates, during which they are in heat—i.e., ready to accept a male and to mate. One or more periods of estrus may occur during the breeding season of a species. Prior to ovulation the endometrium (uterine lining) thickens, in preparation for holding the fertilized ova. As the proliferation of uterine tissue reaches its peak, receptivity is highest—this is the estrous period. Some animals (e.g., dogs) are monestrous, having only one heat during a breeding season. Others (e.g., ground squirrels) are polyestrous: if not impregnated, they will come into heat repeatedly during the breeding season. Males can recognize a female in heat by smell; certain substances (pheromones) are secreted only at this portion of her cycle. The female's genital area may be swollen during estrus, and she may show by a variety of behavioral signals that she is ready to mate.
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estrus — èstrus m DEFINICIJA fiziol. skup promjena u ženki sisavaca povezanih s razdobljem parenja ETIMOLOGIJA lat. estrus ← grč. oȋstros: obad; strast … Hrvatski jezični portal
estrus — estrus. См. эструс. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
estrus — 1850, frenzied passion, from L. oestrus frenzy, gadfly, from Gk. oistros gadfly, breeze, sting, mad impulse, perhaps from a PIE *eis, forming words denoting passion (Cf. Avestan aeЕЎma anger, Lith. aistra violent passion, L. ira anger ). First… … Etymology dictionary
estrus — (Brit. oestrus) ► NOUN ▪ a recurring period of sexual receptivity and fertility in many female mammals. DERIVATIVES estrous adjective. ORIGIN Greek oistros gadfly or frenzy … English terms dictionary
estrus — [es′trəmes′trəs; ] Brit usually [ ē′strəs] n. [ModL < L oestrus, gadfly, horsefly, frenzy < Gr oistros, gadfly, sting, frenzy < IE base * eis , to move violently > ON eisa, to rush on, L ira, ire, Lith aistra, violent passion] 1. the… … English World dictionary
Estrus EP — Infobox Album Name = Estrus EP Type = ep Artist = John Frusciante Released = 1997 Genre = Experimental rock Length = 8:42 Label = Birdman Producer = John Frusciante Last album = Niandra Lades and Usually Just a T Shirt (1994) This album = Estrus… … Wikipedia
Estrus EP — John Frusciante John Frusciante John Frusciante en août 2006. Naissance 5 mars 1970 … Wikipédia en Français
Estrus — ruja statusas T sritis gyvūnų raida, augimas, ontogenezė, embriologija atitikmenys: lot. Estrus; Oestrus ryšiai: platesnis terminas – rujos ciklas … Veterinarinės anatomijos, histologijos ir embriologijos terminai
estrus — noun Etymology: New Latin, from Latin oestrus gadfly, frenzy, from Greek oistros more at ire Date: circa 1890 a regularly recurrent state of sexual excitability during which the female of most mammals will accept the male and is capable of… … New Collegiate Dictionary
estrus — noun alternative spelling of oestrus … Wiktionary