IPA: /kjʊˈreɪtə/
KK: /kjʊˈreɪtər/
A person who is responsible for managing and organizing a collection, such as in a museum or library.
The curator arranged a new exhibition featuring ancient artifacts.
Curator is derived from the Latin "curare" (meaning to take care of) and the suffix "-or" (meaning one who). Thus, a curator is one who takes care of or manages a collection, such as in a museum or gallery.
Think of someone who 'takes care of' ('curare') a collection — that's why a curator is the person responsible for managing it.