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Definition of Estrus
1. Noun. Applies to nonhuman mammals: a state or period of heightened sexual arousal and activity.
Exact synonyms: Heat, Oestrus, Rut
Generic synonyms: Physical Condition, Physiological Condition, Physiological State
Antonyms: Anestrus
Derivative terms: Estrous, Rut
Generic synonyms: Physical Condition, Physiological Condition, Physiological State
Antonyms: Anestrus
Derivative terms: Estrous, Rut
Definition of Estrus
1. the period of heat in female mammals [n -ES]
Medical Definition of Estrus
1. That portion or phase of the sexual cycle of female animals characterised by willingness to permit coitus; readily detectable behavioural and other signs are exhibited by animals during this period. Synonym: heat. Origin: G. Oistros, mad desire (05 Mar 2000)