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Full-text Search for "oestrus"
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oestrus definitions
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WordNet (r) 3.0 (2005)
n
1: applies to nonhuman mammals: a state or period of heightened sexual arousal and activity [syn: estrus, oestrus, heat, rut] [ant: anestrum, anestrus, anoestrum, anoestrus]
2: type genus of the Oestridae: sheep botflies [syn: Oestrus, genus Oestrus]
Oxford Reference Dictionary
n. (also oestrum, US estrus, estrum) a recurring period of sexual receptivity in many female mammals; heat. Derivatives: oestrous adj. Etymology: Gk oistros gadfly, frenzy
Webster's 1913 Dictionary
OEstrus [OE]s"trus, n. [L., a gadfly; also, frenzy, fr.Gr. ? gadfly; hence, sting, fury, insane desire, frenzy.] 1. (Zo["o]l.) A genus of gadflies. The species which deposits its larv[ae] in the nasal cavities of sheep is [oe]strus ovis. 2. A vehement desire; esp. (Physiol.), the periodical sexual impulse of animals; heat; rut.
