endometrium
noun
en·do·me·tri·um
ˌen-dō-ˈmē-trē-əm 
plural endometria
ˌen-dō-ˈmē-trē-əm
: the mucous membrane lining the uterus
Examples of endometrium in a Sentence
Recent Examples on the Web
Obesity can affect hormone levels, which may cause cells in the endometrium to change and grow uncontrollably.
—
Carrie Madormo, Health, 13 July 2025
This may happen due to hormonal issues, such as low progesterone, or problems with the way your endometrium (uterine lining) responds to progesterone.
—Laura Dorwart, Verywell Health, 8 July 2025
Because endometriosis involves tissue from the endometrium, or the inner lining of the uterus, growing outside of the uterus, it’s typically formally diagnosed via a laparoscopic procedure that can show the locations of the endometriosis lesions.
—Mara Santilli, Flow Space, 2 July 2025
The former could be a side effect of a low-dose birth control pill or even ovulation (when a shift in hormones can cause a bit of your endometrium to break off early), for instance.
—Erica Sloan, SELF, 3 June 2025
See All Example Sentences for endometrium
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Carrie Madormo, Health, 13 July 2025
This may happen due to hormonal issues, such as low progesterone, or problems with the way your endometrium (uterine lining) responds to progesterone.
—Laura Dorwart, Verywell Health, 8 July 2025
Because endometriosis involves tissue from the endometrium, or the inner lining of the uterus, growing outside of the uterus, it’s typically formally diagnosed via a laparoscopic procedure that can show the locations of the endometriosis lesions.
—Mara Santilli, Flow Space, 2 July 2025
The former could be a side effect of a low-dose birth control pill or even ovulation (when a shift in hormones can cause a bit of your endometrium to break off early), for instance.
—Erica Sloan, SELF, 3 June 2025
See All Example Sentences for endometrium
Cite this Entry
“Endometrium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/endometrium. Accessed 21 Jul. 2025.
Copy CitationKids Definition
endometrium
noun
en·do·me·tri·um
ˌen-dō-ˈmē-trē-əm
plural endometria
-trē-ə
: the mucous membrane lining the uterus
Medical Definition
endometrium
noun
en·do·me·tri·um
-ˈmē-trē-əm
plural endometria
-trē-ə
: the mucous membrane lining the uterus that is composed of three layers see stratum basale, stratum compactum, stratum spongiosum
Love words? Need even more definitions?
Merriam-Webster unabridged
Share