fossa.
A pit, groove, cavity, or depression.
Meaning & usage
A pit, groove, cavity, or depression.
A long, narrow, shallow depression on the body of an extraterrestrial body, such as a planet or moon.
Where this word comes from
Unadapted borrowing from Latin fossa (“a ditch, trench, fosse”). Doublet of fosse.
A large nocturnal reddish-brown catlike mammal (Cryptoprocta ferox) of the civet family, endemic to the rainforests of Madagascar. It is slender, long-tailed and has retractile claws and anal scent glands.
Where this word comes from
[Alt: Cryptoprocta ferox Borrowing from Malagasy fosa which likely once referred to the Malayan weasel (Mustela nudipes) prior to a semantic shift, thus cognate with Malay pusak and Tagalog pusa both meaning "cat".
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.