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estrus
es·trus also oes·trus E0223400 (ĕs′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.
[New Latin, from Latin oestrus, frenzy, gadfly, from Greek oistros; see eis- in Indo-European roots.]estrus (ˈɛstrəs; ˈiːstrəs) n (Zoology) the usual US spelling of oestrus ˈestrous, ˈestrual adjes•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] es·trus (ĕs′trəs) A regularly recurring period during which most female mammals are ready to mate. Also called heat.estrus, oestrusthe condition of being in rut or sexual arousal, applied particularly to the female. Also spelled estrum, oestrum. — estrous, oestrous, adj.See also: Animals
the condition of being in rut or sexual arousal, applied particularly to the female. Also called est rum, oestrum. — estrous, oestrous, adj.See also: SexThesaurus| Noun | 1. |  estrus - applies to nonhuman mammals: a state or period of heightened sexual arousal and activityoestrus, rut, heatphysical condition, physiological condition, physiological state - the condition or state of the body or bodily functionsanestrum, anestrus, anoestrum, anoestrus - applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus |
estrus also oestrus
nounA regular period of sexual excitement in female mammals:heat, rut, season.Estrus
oestrus (US), estrus, estrum a regularly occurring period of sexual receptivity in most female mammals, except humans, during which ovulation occurs and copulation can take place; heat Estrus The period in mammals during which the female ovulates and is receptive to mating. It is commonly referred to as rut or heat. From one estrus period to the next there occurs a series of changes, particularly in the ovary, uterus, and vagina, termed the estrous cycle. With reference to the ovary, the cycle can be divided into a follicular phase, during which the Graafian follicles are ripening, and a luteal phase, during which the corpora lutea develop in the ovulated follicles. During these two phases, mainly estrogen and progesterone, respectively, are secreted, and these hormones control the uterine and vaginal changes. The beginning of the follicular phase is termed proestrus, and the luteal phase metestrus. Following the latter, there is a period of relatively little change, termed diestrus. In species in which the latter is prolonged, it is termed anestrus. See Estrogen, Reproduction (animal) Estrus (also heat or rut), a stage in the sex and reproductive cycle, or period of sexual activity, in female mammals. Estrus recurs regularly before coitus at intervals characteristic for each species of animal—several days, weeks, or months. During estrus the mating instinct is aroused, and in most mammals ovulation occurs at the end of estrus. In polyestrous animals, estrus recurs periodically throughout the year. In mice and rats, for example, it occurs every four to six days; in guinea pigs, every 18 days; and in cows, every 21 days. In monestrous animals, it occurs once or twice a year, as in dogs and foxes. During estrus, morphological changes occur in the vagina and uterus; they are especially marked in such rodents as mice, rats, and guinea pigs. estrus[′es·trəs] (physiology) The period in female mammals during which ovulation occurs and the animal is receptive to mating. estrus
estrus [es´trus] the recurrent, restricted period of sexual receptivity in female mammals other than human females, marked by intense sexual urge. See also cycle" >estrous cycle. Called also estruation, estrum, and heat. adj., adj es´trual, es´trous.es·trus (es'trŭs), That portion or phase of the sexual cycle of female animals characterized by willingness to permit coitus; readily detectable behavioral and other signs are exhibited by animals during this period. Synonym(s): heat (3) [G. oistros, mad desire] estrus also oestrus (ĕs′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.es·trus (es'trŭs) That portion or phase of the sexual cycle of female animals characterized by willingness to permit coitus; readily detectable behavioral and other signs are exhibited by animals during this period.
Synonym(s): estruation, heat (2) , oestrus. [G. oistros, mad desire]estrus
Synonyms for estrusnoun a regular period of sexual excitement in female mammalsSynonymsSynonyms for estrusnoun applies to nonhuman mammals: a state or period of heightened sexual arousal and activitySynonymsRelated Words- physical condition
- physiological condition
- physiological state
Antonyms- anestrum
- anestrus
- anoestrum
- anoestrus
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