nounWord forms: plural ˈvilˌli (ˈvɪlˌaɪ
1. Anatomy any of numerous hairlike or fingerlike vascular processes on certain mucous membranes of the body, as of the small intestine, serving
to secrete mucus, absorb fats, etc., or of the chorion in the mammalian placenta, serving in the exchange of food materials, etc. between
the mother and the fetus
2. Botany any of the long, soft, fine hairs on certain plants, as mosses
Webster’s New World College Dictionary, Fourth Edition, compiled by the
editors of Webster’s New World Dictionaries. Copyright © 2010 by Houghton
Mifflin Harcourt. Published by Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'villus'
L, shaggy hair, tuft of hair, var. of vellus,
a fleece, wool