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: