Adjacent Words

estrus 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]

Merriam Webster's

noun Etymology: New Latin, from Latin oestrus gadfly, frenzy, from Greek oistros — more at ire Date: circa 1890 a regularly recurrent state of sexual excitability during which the female of most mammals will accept the male and is capable of conceiving ; heat; also a single occurrence of this state