fossa1 ['f?s?]
¦ noun (plural fossae -si:) Anatomy a shallow depression or hollow.
Origin
C17: from L., lit. 'ditch'.
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fossa2 ['f?s?]
¦ noun a large nocturnal reddish-brown catlike mammal of the civet family, found in Madagascar. [Cryptoprocta ferox.]
Origin
C19: from Malagasy fosa.