Dictionary
en•do•the•li•um
Pronunciation: (en"dō-thē'lē-um), [key]—
n.,
—pl. -li•aPronunciation: (-lē-u). [key]
a type of epithelium composed of a single layer of smooth, thin cells that lines the heart, blood vessels, lymphatics, and serous cavities.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.