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villus

noun

vil·​lus ˈvi-ləs How to pronounce villus (audio)
plural villi ˈvi-ˌlī How to pronounce villus (audio)
-(ˌ)lē
: a small slender often vascular process: such as
a
: one of the minute finger-shaped processes of the mucous membrane of the small intestine that serve in the absorption of nutriment
b
: one of the branching processes of the surface of the chorion of the developing embryo of most mammals that help to form the placenta

Word History

Etymology

New Latin, from Latin, tuft of shaggy hair — more at velvet

First Known Use

1728, in the meaning defined above

Time Traveler
The first known use of villus was in 1728

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