Definition of moccasin
1 a
: a soft leather heelless shoe or boot with the sole brought up the sides of the foot and over the toes where it is joined with a puckered seam to a U-shaped piece lying on top of the foot
b
: a regular shoe having a seam on the forepart of the vamp imitating the seam of a moccasin
2 a
: water moccasin
b
: a snake (as of the genus Natrix) resembling a water moccasin
