uterus
noun
uter·us
ˈyü-tə-rəs 
ˈyü-trəs
plural uteri
ˈyü-tə-ˌrī
or uteruses
or uteruses
1
: a muscular organ of the female mammal for containing and usually for nourishing the young during development prior to birth
called also womb
2
: a structure in some other animals (such as salamanders and nematodes) analogous to the mammalian uterus in which eggs or young develop
Examples of uterus in a Sentence
Recent Examples on the Web
Written and directed by Iyiola in her directorial debut, the film follows Zadie, a successful London florist suffering from fibroids, benign tumors that can develop in the wall of the uterus.
—
Stewart Clarke, Deadline, 15 Jan. 2026
The second drug, misoprostol, taken 24 to 48 hours later, causes the uterus to contract and dilate the cervix, which will expel the embryo.
—Arthur Jones Ii, ABC News, 14 Jan. 2026
An autopsy later ruled Carillo sustained stab wounds and died from severe blood loss caused by the removal of her uterus.
—Kevin Maurer, Rolling Stone, 13 Jan. 2026
Implantation has been almost impossible to study Embryo implantation happens just days after fertilisation, when a five- to six-day-old embryo reaches the uterus.
—Rupendra Brahambhatt, Interesting Engineering, 10 Jan. 2026
See All Example Sentences for uterus
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Stewart Clarke, Deadline, 15 Jan. 2026
The second drug, misoprostol, taken 24 to 48 hours later, causes the uterus to contract and dilate the cervix, which will expel the embryo.
—Arthur Jones Ii, ABC News, 14 Jan. 2026
An autopsy later ruled Carillo sustained stab wounds and died from severe blood loss caused by the removal of her uterus.
—Kevin Maurer, Rolling Stone, 13 Jan. 2026
Implantation has been almost impossible to study Embryo implantation happens just days after fertilisation, when a five- to six-day-old embryo reaches the uterus.
—Rupendra Brahambhatt, Interesting Engineering, 10 Jan. 2026
See All Example Sentences for uterus
Cite this Entry
“Uterus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uterus. Accessed 29 Jan. 2026.
Copy CitationKids Definition
uterus
noun
uter·us
ˈyüt-ə-rəs
plural uteruses or uteri
-ˌrī
: the muscular organ of a female mammal in which the young develop before birth
called also womb
Medical Definition
uterus
noun
uter·us
ˈyüt-ə-rəs
plural uteri
-ˌrī
also uteruses
also uteruses
: an organ in female mammals for containing and usually for nourishing the young during development prior to birth that consists of a greatly modified and enlarged section of an oviduct (as in rodents and marsupials) or of the two oviducts united (as in the higher primates including humans), that has thick walls consisting of an outer serous layer, a very thick middle layer of smooth muscle, and an inner mucous layer containing numerous glands, and that during pregnancy undergoes great increase in size and change in the condition of its walls
called also womb
see cervix sense 2a, corpus uteri, endometrium, fundus sense c, myometrium, perimetriumLove words? Need even more definitions?
Merriam-Webster unabridged
