hollowing
hol-low-ing
verb
Making or becoming empty inside; creating a void or cavity.
"The wind was hollowing out the rock face."
noun
The act or process of making something empty inside or creating a cavity.
"The hollowing of the tree created a perfect shelter."
Thesaurus
Synonyms: hollow out, hollow, core out, hole, dig, excavate, fistulous, cannular, vasiform, tubelike, fistular, deep-set
Antonyms: solid