English Dictionary

fossa

/ˈfɒs.ə/

noun

(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.

The fossa is a depression in the bone.

意味（1）

(anatomy) A pit, groove, cavity, or depression.

意味（2）

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