endometrium
Americannoun
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endometria
plural
noun
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endometria
plural
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The mucous membrane that lines the uterus. A fertilized egg must embed itself in the endometrium in order to develop into an embryo.
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See more at menstrual cycle
Other Word Forms
Derived Forms
Inflected Forms
Nouns
Etymology
Origin of endometrium
1880–85; endo- + New Latin -metrium < Greek mḗtr ( ā ) womb + -ion diminutive suffix
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
The researchers also noticed age-related changes to the womb lining or endometrium - where a fertilised egg or embryo implants to grow - in the older women.
From BBC ● Jul. 6, 2026
During this period, the placenta implants itself into the endometrium - the mucosal lining of the mother's uterus.
From BBC ● Jan. 18, 2024
The endometrium is a membrane that lines the uterus and thickens every month to support embryo implantation.
From BBC ● Aug. 24, 2023
As the trimester progresses, the outer layer of the embryo begins to merge with the endometrium, and the placenta forms.
From Textbooks ● Jun. 9, 2022
It is the endometrium that is principally concerned in menstruation—that is, it is from it that the monthly discharge of blood comes.
From Woman Her Sex and Love Life by William J. Robinson
Could you give us a condensed version of the role that our endometria play in immune response?
From Slate ● Apr. 22, 2021
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
