microvillus

(mī′krō vil′əs)

any of a number of tiny, fingerlike structures projecting from the plasma membrane of certain specialized cells

See microvillus in American Heritage Dictionary 4

noun pl. mi·cro·vil·li (-vĭlˈīˌ)

Any of the minute hairlike structures projecting from the surface of certain types of epithelial cells, especially those of the small intestine.

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