uter·​us | \ ˈyü-tə-rəs How to pronounce uterus (audio) , ˈyü-trəs \
plural uteri\ ˈyü-​tə-​ˌrī How to pronounce uterus (audio) \ or uteruses

Definition of uterus

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 lower animals analogous to the uterus in which eggs or young develop

Examples of uterus in a Sentence

Recent Examples on the Web First, there is a long history of classifying emotion in a pejorative way and then blaming that on the uterus. Alison Escalante, Forbes, 12 Nov. 2021 According to the Mayo Clinic website, uterine fibroids are noncancerous growths of the uterus that often appear during childbearing years. Rick Pearson, chicagotribune.com, 11 Nov. 2021 This happens when the cancer spreads from the uterus to the abdomen and causes fluid to build up in the abdomen. Jenny Mccoy, Health.com, 21 Oct. 2021 Surgical removal of the uterus is the only treatment to prevent fibroids from returning, per NYU Langone Health. Sarah Bradley, Health.com, 14 Oct. 2021 During pregnancy, your body creates more of the hormone progesterone, which is secreted in larger amounts to prepare the uterus to accommodate the growing fetus. Elizabeth Millard, SELF, 19 Oct. 2021 Stigma around uterus-bearing people making their own bodily choices is high. Sarah Ratchford, refinery29.com, 8 Oct. 2021 Uterine fibroids are non-cancerous tumors that develop in the uterus and can vary from the size of a pea to the size of a football or larger and are more common than some women might think. Maia Niguel Hoskin, Forbes, 30 Sep. 2021 Mifepristone and misoprostol, which are taken to stop a pregnancy from progressing and to empty the uterus, are listed as essential medicines by the World Health Organization. Samantha Schmidt, Sammy Westfall, Anchorage Daily News, 14 Sep. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'uterus.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of uterus

14th century, in the meaning defined at sense 1

History and Etymology for uterus

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

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Time Traveler for uterus

Time Traveler

The first known use of uterus was in the 14th century

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Last Updated

22 Nov 2021

Cite this Entry

“Uterus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uterus. Accessed 3 Dec. 2021.

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More Definitions for uterus



English Language Learners Definition of uterus

: the organ in women and some female animals in which babies develop before birth


uter·​us | \ ˈyü-tə-rəs How to pronounce uterus (audio) \
plural uteruses or uteri\ ˈyü-​tə-​ˌrī \

Kids Definition of uterus

: the organ of a female mammal in which the young develop before birth


uter·​us | \ ˈyüt-ə-rəs How to pronounce uterus (audio) \
plural uteri\ -​ˌrī How to pronounce uterus (audio) \ also uteruses

Medical Definition of uterus

: 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

More from Merriam-Webster on uterus

Nglish: Translation of uterus for Spanish Speakers

Britannica English: Translation of uterus for Arabic Speakers

Britannica.com: Encyclopedia article about uterus


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