noun, plural ep·i·the·li·ums, ep·i·the·li·a [ep-uh-thee-lee-uh] /ˌɛp əˈθi li ə/. Biology.
Examples from the Web for epithelial
In Echinodermata a certain amount of mesenchyme appears before the epithelial mesoderm, which is formed later as gut-diverticula.
In slightly older eggs the epithelial cells are no longer uniform or arranged as a single layer.The Works of Francis Maitland Balfour, Volume 1|Francis Maitland Balfour
All the primary tumors of bone are of the connective tissue group, but various secondary tumors of epithelial origin may occur.Surgery, with Special Reference to Podiatry|Maximilian Stern
The closure of the wound causes an increase in the number of epithelial rows over the defect.The Organism as a Whole|Jacques Loeb
Pyriform bodies surrounding the zona radiata of the ovum, probably the remains of epithelial cells.The Works of Francis Maitland Balfour, Volume IV (of 4)|Francis Maitland Balfour