uterus

play
noun uter·us \ˈyü-tə-rəs, ˈyü-trəs\

Definition of uterus

plural

uteri

play \ˈyü-tə-ˌrī\ or

uteruses

  1. 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. 2 :  a structure in some lower animals analogous to the uterus in which eggs or young develop

Recent Examples of uterus from the Web

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


UTERUS Defined for English Language Learners

uterus

play
noun

Definition of uterus for English Language Learners

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


UTERUS Defined for Kids

uterus

play
noun uter·us \ˈyü-tə-rəs\

Definition of uterus for Students

plural

uteruses

or

uteri

\ˈyü-tə-ˌrī\
  1. :  the organ of a female mammal in which the young develop before birth


Medical Dictionary

uterus

play
noun uter·us \ˈyüt-ə-rəs\

Medical Definition of uterus

plural

uteri

\-ˌrī\play also

uteruses

  1. :  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



Seen and Heard

What made you want to look up uterus? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to become worse as time passes

Get Word of the Day daily email!

Test Your Vocabulary

The Emoji Quiz

  • emoji-the-quiz
  • What phase of the moon is this: 🌖 ?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!