cavus

Etymology
..

Noun

 * 1)  In planetary geology, an irregular steep-sided depression that does not seem to be an impact crater.

Etymology
From, possibly from , from. Related to 🇨🇬, 🇨🇬, 🇨🇬, 🇨🇬, 🇨🇬, 🇨🇬, 🇨🇬. Further related to 🇨🇬, whence 🇨🇬 and.

Adjective

 * 1) hollow, hollowed out, cavernous, concave
 * 2) excavated, channeled
 * 3) vain, empty
 * 1) excavated, channeled
 * 2) vain, empty