Found 2 items, similar to endothelium.
English → English (WordNet) Definition: endothelium endothelium n : an epithelium of mesoblastic origin; a thin layer of flattened cells that lines the inside of some body cavities [also: endothelia (pl)]
English → English (gcide) Definition: Endothelium Endothelium \En`do*the"li*um\, n.; pl. Endothelia. [NL., fr. Gr. 'e`ndon within + ? nipple.] (Anat.) The thin epithelium lining the blood vessels, lymphatics, and serous cavities. See Epithelium. [1913 Webster]