(anatomy) A pit, groove, cavity, or depression. / (astronomy) A long, narrow, shallow depression on the body of an extraterrestrial body, such as a planet or moon.

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.

plural of fossa

plural of fossa (the mammal)

(anatomy) Either lateral half of the nasal cavity.

(astronomy) an area of intense tectonic activity on the surface of Mars; photographed in detail by Mars Express

(anatomy) The hollow at the end of the scapula into which fits the humerus to make the shoulder joint

(anatomy) poplit (shallow depression located at the back of the knee joint)

(anatomy) The pharyngeal recess behind the ostium of the Eustachian tube.

plural of glenoid fossa