noun, plural mi·cro·vil·li [mahy-kroh-vil-ahy] /ˌmaɪ kroʊˈvɪl aɪ/. Cell Biology.
- any of the small, fingerlike projections of the surface of an epithelial cell.
noun plural -li (-laɪ)
- physiol a thin protuberance present in great abundance at the surface of some epithelial cells, notably in the gut, thus increasing the surface area available for absorption
n. pl. mi•cro•vil•li (-vĭl′ī′)
- Any of the minute hairlike structures projecting from the surface of certain types of epithelial cells, especially those of the small intestine.