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
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