The Open Dictionary

estrous cycle

noun

Definitions of estrous cycle noun

  1. Countablebiology

    The recurring series of physiological changes in female animals during which they become fertile and receptive to mating.

    • Researchers are observing the estrous cycle of cows to determine the optimal time for insemination.

    • The estrous cycle in female dogs typically lasts about three weeks, during which behavioral changes may occur.

    • The estrous cycle of some animals is influenced by seasonal and environmental conditions.