uter·​us | \ ˈyü-tə-rəs How to pronounce uterus (audio) , ˈyü-trəs \
plural uteri\ ˈyü-​tə-​ˌrī How to pronounce uteri (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 Nikki Wehmeir, 39, of Los Angeles, donated her uterus one year ago. Anna Kuchment, Dallas News, "Pandemic Baby Boom: Baylor’s Uterus Transplant Program Grows to No. 1," 19 Nov. 2020 After months of trying to expand our family, my eggs were defrosted, made into embryos, two of which were viable, and transferred to my uterus. Susie Kantar-cohen, Glamour, "You Can Still Get Pregnant in Perimenopause—I Did," 22 Oct. 2020 The Newark mom had for years been dealing with symptoms related to fibroids in her uterus, a common condition that affects many women – particularly African American women – in their childbearing years. Marina Affo, USA TODAY, "Come prepared, speak up, take notes: How to advocate for yourself at the doctor's office," 20 Oct. 2020 The embryo will be transferred to the transplanted uterus, where it will be carried for almost nine months. al, "Alabama hospital first in region to start uterus transplant program," 19 Oct. 2020 DuPuy-German said her new physician told her that, according to her charts, Perwaiz had diagnosed her with endometriosis — a painful disorder in which tissue that normally lines the uterus grows outside of it. Katie Mettler, Washington Post, "Dr. Javaid Perwaiz patients - Virginia Beach, VA," 13 Oct. 2020 Dillon, who served 15 years for killing her abusive husband, was 24 when a doctor found cysts in her uterus. Sean P. Means, The Salt Lake Tribune, "In ‘Belly of the Beast,’ Utah filmmaker examines modern ‘eugenics’ in women’s prisons," 13 Oct. 2020 The placenta—a Frisbee-size hunk of tissue that chaperones a fetus in the uterus only to be tossed aside in the delivery room—has mysterious beginnings. Kelly Servick, Science | AAAS, "Stem cells offer new glimpse at how the placenta emerges—and how the fetus-sustaining organ can fail," 30 Sep. 2020 In people who have the condition, the tissue grows outside the uterus, in all sorts of unsuitable places. Lucia Osborne-crowley, refinery29.com, "How Can We Not Know What Causes Endometriosis?," 8 Sep. 2020

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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Statistics for uterus

Last Updated

22 Nov 2020

Cite this Entry

“Uterus.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/uterus. Accessed 30 Nov. 2020.

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How to pronounce uterus (audio)

English Language Learners Definition of uterus

medical : 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 uteri (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

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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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