estrous
Americanadjective
Etymology
Origin of estrous
First recorded in 1895–1900; see origin at oestrous
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.
The rats were still fertile, but they had a longer estrous cycle, lower ovarian weight, and fewer pups than normal rats.
From Science Daily ● Dec. 22, 2023
But the estrous cycle has little to do with how female mice behave, according to a new study that used machine-learning software to track the second-to-second behavior of animals exploring an open space.
From New York Times ● Mar. 7, 2023
There are, however, male dogs that show a lifelong indifference to estrous females and never have heterosexual sex.
From Slate ● Feb. 1, 2013
At the sanctuary, they presented sixteen adult female koalas while they were in estrous with auditory playback of bellows recorded from five different males.
From Scientific American ● Dec. 6, 2012
The result fits with previous studies which found that mice with mutations in genes that regulate their circadian rhythms, the body's timekeeper, have irregular estrous cycles and more pregnancy failures.
From Science Magazine ● May 23, 2012
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
