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endothelium

noun
en·​do·​the·​li·​um | \ ˌen-də-ˈthē-lē-əm How to pronounce endothelium (audio) , -dō-\
plural endothelia\ ˌen-​də-​ˈthē-​lē-​ə How to pronounce endothelia (audio) , -​dō-​ \

Definition of endothelium

1 : an epithelium of mesodermal origin composed of a single layer of thin flattened cells that lines internal body cavities and the lumens of vessels
2 : the inner layer of the seed coat of some plants
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Other Words from endothelium

endothelial \ ˌen-​də-​ˈthē-​lē-​əl How to pronounce endothelial (audio) , -​dō-​ \ adjective

Examples of endothelium in a Sentence

Recent Examples on the Web

 Abnormalities in the endothelium, or inner lining, of these smaller vessels can cause spasms, resulting in pain and diminished blood flow to the heart. — Roni Caryn Rabin, New York Times, "Is Microvascular Heart Disease a Serious Condition?," 29 Sep. 2017

First Known Use of endothelium

1872, in the meaning defined at sense 1

History and Etymology for endothelium

New Latin, from end- + -thelium (as in epithelium)

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More Definitions for endothelium

endothelium

noun
en·​do·​the·​li·​um | \ ˌen-də-ˈthē-lē-əm How to pronounce endothelium (audio) \
plural endothelia\ -​lē-​ə How to pronounce endothelia (audio) \

Medical Definition of endothelium

: an epithelium of mesoblastic origin composed of a single layer of thin flattened cells that lines internal body cavities (as the serous cavities or the interior of the heart)

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