noun, plural microvilli [mahy-kroh-vil-ahy] . Cell Biology.
any of the small, fingerlike projections of the surface of an epithelial cell.

1950–55; micro- + villus

microvillar, microvillous, adjective
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World English Dictionary
microvillus (ˌmaɪkrəʊˈvɪləs)
n , pl -li
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

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American Heritage
Medical Dictionary

microvillus mi·cro·vil·lus (mī'krō-vĭl'əs)
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.

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Example sentences
The tumor is covered in microscopic hairlike structures called microvilli, which enable absorption and secretion.
Kidney cells grow microvilli- hairlike fibers- that help absorb water and nutrients.
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