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Webster 1913 Edition
Villus
‖
Vil′lus
,Noun.
pl.
Villi
(#)
. [L., shaggy hair, a tuft of hair.]
1.
(Anat.)
One of the minute papillary processes on certain vascular membranes; a villosity;
as,
. villi
cover the lining of the small intestines of many animals and serve to increase the absorbing surface2.
pl.
(Bot.)
Fine hairs on plants, resembling the pile of velvet.