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
The estrous cycle of the females showed a very weak effect on their behavior, the researchers found.
From New York Times ● Mar. 7, 2023
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
Spayed females don’t go into yowling heat or bleeding estrous, and have a reduced risk of breast cancer.
From Slate ● Oct. 10, 2011
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.
