uterus

noun

uter·​us ˈyü-tə-rəs 

ˈyü-trəs

plural uteri ˈyü-tə-ˌrī  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

Barksdale went to Kaiser Permanente Southwood Medical Center in Jonesboro, Georgia, in early 2025 to seek treatment for heavy bleeding and fibroids, which are noncancerous growths in and around the uterus. — Kim Chandler, Fortune, 8 Aug. 2026

Surgeons discovered early-stage cancer in her removed uterus. — ABC News, 6 Aug. 2026

The only treatment for her cancer was surgery, and on May 15, Barksdale had her uterus, cervix, ovaries, fallopian tubes, and four lymph nodes removed. — Cara Lynn Shultz, PEOPLE, 6 Aug. 2026

Cassandra Barksdale was forced into premature menopause after doctors removed her cervix, uterus, fallopian tubes and ovaries last year, according to a lawsuit filed in Clayton County, Georgia. — Doha Madani, NBC news, 4 Aug. 2026

Word History

Etymology

Middle English, from Latin, belly, womb; probably akin to Greek hoderos belly, Sanskrit udara

First Known Use

14th century, in the meaning defined at sense 1

Kids 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

: 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, perimetrium