monestrous

[mon-es-truh s]

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adjective

of or relating to a mammal that has one estrus period per breeding season, as the dog.

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Also monoestrous.

Origin of monestrous

First recorded in 1895–1900; mon- + estrous

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018