\Moc"ca*sin\, n. [An Indian word. Algonquin makisin.]
[Sometimes written {moccason}.]
1. A shoe made of deerskin, or other soft leather, the sole
   and upper part being one piece. It is the customary shoe
   worn by the American Indians.
2. (Zo["o]l.) A poisonous snake of the Southern United
   States. The water moccasin ({Ancistrodon piscivorus}) is
   usually found in or near water. Above, it is olive brown,
   barred with black; beneath, it is brownish yellow, mottled
   with darker. The upland moccasin is {Ancistrodon
   atrofuscus}. They resemble rattlesnakes, but are without
   rattles.
{Moccasin flower} (Bot.), a species of lady's slipper
   ({Cypripedium acaule}) found in North America. The lower
   petal is two inches long, and forms a rose-colored
   moccasin-shaped pouch. It grows in rich woods under
   coniferous trees.