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The Collaborative International Dictionary
Galictis vittata

Grison \Gri"son\, n. [F., fr. grison gray, gray-haired, gris gray. See Gris.] (Zo["o]l.)

  1. A South American animal of the family Mustelidae ( Galictis vittata). It is about two feet long, exclusive of the tail. Its under parts are black. Also called South American glutton.

  2. A South American monkey ( Lagothrix infumatus), said to be gluttonous.