estrus
noun
the period of heat or rut; the period of maximum sexual receptivity of a female mammal.
estrum
-
a variation of
estrus.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
When the cow is spayed, it does away with all trouble attending estrum, or heat, gestation, and parturition with its accidents and ailments.
From Special Report on Diseases of Cattle by United States. Bureau of Animal Industry
