Villus
Villus , noun
[Latin, shaggy hair, a tuft of hair.]
1.
(Anatomy) 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 surface.
2.
(Botany) Fine hairs on plants, resembling the pile of velvet.