estrous cycle

(redirected from Prooestrus)
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Related to Prooestrus: metestrus, estrous

estrous cycle

n.
The recurrent set of physiological and behavioral changes that take place from one period of estrus to another.

es′trous cy`cle


n.
a series of physiological changes in sexual and other organs in female mammals, extending from one period of heat to the next.
[1895–1900]

es·trous cycle

(ĕs′trəs)
The series of bodily changes that occur in the female of most mammals from one period of estrus to another. The estrous cycle usually takes place during a specific period known as the breeding season, which ensures that the young are born at a time when the chance of survival is greatest. The length of the cycle varies from species to species.