Dictionary » O » Oestrus



1. (Science: zoology) A genus of gadflies. The species which deposits its larvae in the nasal cavities of sheep is oestrus ovis.

2. A vehement desire; especially.

(Science: physiology) The periodical sexual impulse of animals; heat; rut.

Origin: L, a gadfly; also, frenzy, fr.Gr. Gadfly; hence, sting, fury, insane desire, frenzy.

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The estrus cycle (also œstrus or estrous cycle) refers to the recurring physiologic changes that are induced by reproductive hormones in most mammalian placental females (humans and great apes are the only mammals who undergo a menstrual cycle instead). Estrus cycles start after puberty in sexually ...

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by baikuza
Thu Jan 26, 2006 2:59 am
Forum: Human Biology
Topic: Periods
Replies: 61
Views: 33058

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