(Geology) A circular depression on the flank of a volcano, caused by the collapse of a volcanic wall.
A sagging area; a depression.
A natural hollow or depression in the body or an organ.
A hollow or depression.
An opening or perforation:
Find another word for concavities. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for concavities, like: sinks, sags, pits, hollows, dips and holes.