Source : Webster's Revised Unabridged Dictionary (1913)

Cuscus \Cus"cus\, n. [The same word as {Couscous}, fr. F.
   couscous couscous, Ar. kuskus.] (Bot.)
   A soft grass ({Pennisetum typhoideum}) found in all tropical
   regions, used as food for men and cattle in Central Africa.

Source : WordNet®

cuscus
     n : woolly-haired monkey-like arboreal marsupial of New Guinea
         and northern Australia