subcavate
/sʌbˈkæveɪt/Definitions
1. verb
to have or form a subcavity or a cavity below the surface of something
“The disease can cause the bone to subcavate, leading to a loss of structural integrity.”
2. adjective
having or forming a cavity or subcavity below the surface
“The subcavate structure of the coral reef supports a diverse array of marine life.”