Pronunciation: (ep"u-thē'lē-um), [key]
—pl. -li•ums, -li•aPronunciation: (-lē-u). [key] Biol.
any animal tissue that covers a surface, or lines a cavity or the like, and that, in addition, performs any of various secretory, transporting, or regulatory functions.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.