The Collaborative International Dictionary
Foussa
Foussa \Fous"sa\, n. [Natibe name.] (Zo["o]l.) A viverrine animal of Madagascar ( Cryptoprocta ferox). It resembles a cat in size and form, and has retractile claws.
Wiktionary
foussa
n. (archaic form of fossa English) (carnivorous mammal)