coremaker
/kɔrˈmeɪkər/Definitions
1. noun
a person who designs and makes the internal mold or core for a casting, especially in metalcasting
“The coremaker worked tirelessly to create the intricate mold for the artist’s sculpture.”
2. verb
to design and make the internal mold or core for a casting
“The engineer was tasked with coremaking the complex metal component.”