endothelium

noun en·do·the·li·um \ ˌen-də-ˈthē-lē-əm , -dō- \

Definition of endothelium

plural endothelia play \ˌen-də-ˈthē-lē-ə, -dō-\
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

endothelial

play \ˌen-də-ˈthē-lē-əl, -dō-\ adjective

Origin and Etymology of endothelium

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


Medical Dictionary

endothelium

noun en·do·the·li·um \ ˌen-də-ˈthē-lē-əm \

medical Definition of endothelium

plural endothelia play \-lē-ə\
: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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