/mok"euh sin, -zeuhn/ , n.
1. a heelless shoe made entirely of soft leather, as deerskin, with the sole brought up and attached to a piece of U-shaped leather on top of the foot, worn originally by the American Indians.
2. a hard-soled shoe or slipper resembling this, often decorated with beads.
3. any of several North American snakes of the genus Agkistrodon ( Ancistrodon ), esp. the cottonmouth.
[ 1605-15, Amer. ; maxkeseni ]