estrus


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es·trus

also oes·trus  (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 adj

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]

es·trus

(ĕs′trəs)
A regularly recurring period during which most female mammals are ready to mate. Also called heat.

estrus, oestrus

the 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: Sex
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.estrus - applies to nonhuman mammals: a state or period of heightened sexual arousal and activityestrus - applies to nonhuman mammals: a state or period of heightened sexual arousal and activity
physical condition, physiological condition, physiological state - the condition or state of the body or bodily functions
anestrum, anestrus, anoestrum, anoestrus - applies to nonhuman mammals: a state or interval of sexual inactivity between two periods of estrus

estrus

also oestrus
noun
A regular period of sexual excitement in female mammals:
References in periodicals archive ?
The majority of investigators confirm the appearance of estrus cycles in female moose during the rutting period, which usually occurs from the end of September to the end of October (Knorre 1959, Kheruvimov 1986, Kozhukhov 1989, Schwartz and Hundertmark 1993).
A cow in standing estrus with an 11-mm follicle has the same chance of becoming pregnant and maintaining the pregnancy as a cow with a 16-mm follicle.
Removing the CIDR insert, following a five mL injection of Pharmacia's Lutalyse Sterile Solution on day six, causes a drop in progesterone, triggering estrus and ovulation.
One problem is that female dogs go into estrus, which is the only time embryos can be implanted, only every 6 to 12 months.
Females exhibiting no signs of estrus and male rabbits were also evaluated and compared.
Rats exhibiting a minimum of two normal length (4-5 days) estrus cycles were killed with [CO.
Women evolved from having constant estrus to having monthly menses and hidden ovulation in response to a surge in the death rate of women and infants during childbirth.
Also, the bull's ability to locate cows in estrus and breed them is clearly vital to the success of the operation.
The latter deficiency was made up when they were spotted by Dave Crider, the head of the garage-rock label Estrus Records.
That's because a female panda's estrus, the time during which she can become pregnant, occurs only once a year for one to four days.
Women lost estrus (heat), acquired a menses accompanied by heavy bleeding and painful cramps, and began to experience orgasms--necessary evolutionary adaptations that allowed them to become aware of the concept of time.
The researchers monitored the female rats' estrus cycles and found they showed this sensitivity to moderate stress only when they were in a high-estrogen phase.