The Collaborative International Dictionary of English v.0.48:

Kinkajou \Kin"ka*jou`\, n. [F. kinkajou, quincajou, from the
   native American name.] (Zool.)
   A nocturnal carnivorous mammal (Cercoleptes caudivolvulus)
   of South America, about as large as a full-grown cat. It has
   a prehensile tail and lives in trees. It is the only
   representative of a distinct family (Cercoleptid[ae])
   allied to the raccoons. Called also potto, and honey
   bear.
   [1913 Webster]