Source : Webster's Revised Unabridged Dictionary (1913)

Villous \Vil"lous\, a. [L. villosus: cf. F. villeux. Cf.
   {Velvet}.]
   1. Abounding in, or covered with, fine hairs, or a woolly
      substance; shaggy with soft hairs; nappy.

   2. (Anat.) Furnished or clothed with villi.