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Definition of uterus
uteri
play \ˈyü-tə-ˌrī\ oruteruses
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
Explore Merriam-Webster
Recent Examples of uterus from the Web
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The placenta grows in the uterus during pregnancy and provides oxygen and nutrients to the fetus.
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The placenta grows in the uterus during pregnancy and provides oxygen and nutrients to the fetus.
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There are a variety of reasons a couple might need a carrier For example, the woman may not have a uterus after a hysterectomy to treat a disease like cancer.
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My doctor had to stick his entire arm in me and detach the placenta with his hand, scraping it away from my uterus with his fingernails.
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Until several years ago, scientists thought the uterus was a dark environment.
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Meanwhile, the mind’s eye is free to go where cameras cannot — like a cutaway rendering of a woman’s uterus as a Godzilla-like monster fills it with semen.
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Animal models have demonstrated not only that light penetrates into the uterus but also that light penetration is critical in mice for preparing the eye and light response pathway for postnatal vision.
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Then, a legal letter goes to the fertility doctor to give the go-ahead for the embryo transfer, the process in which the patients' fertilized embryo will be implanted in the gestational surrogate’s uterus.
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.
Origin and Etymology of uterus
Middle English, from Latin, belly, womb; probably akin to Greek hoderos belly, Sanskrit udara
Other Anatomy Terms
UTERUS Defined for English Language Learners
uterus
playDefinition of uterus for English Language Learners
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medical : the organ in women and some female animals in which babies develop before birth
UTERUS Defined for Kids
uterus
playDefinition of uterus for Students
uteruses
oruteri
\ˈyü-tə-ˌrī\: the organ of a female mammal in which the young develop before birth
Medical Dictionary
uterus
playMedical Definition of uterus
uteri
\-ˌrī\play alsouteruses
: 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 2a, corpus uteri, endometrium, fundus c, myometrium, perimetrium
Illustration of uterus
Learn More about uterus
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Spanish Central: Translation of 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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