cyclopaedist
/sɪkˈlɒpiːdɪst/Definitions
1. noun
A person who writes or edits a cyclopaedia; an encyclopaedist.
“The team of experts worked as cyclopaedists to create the comprehensive encyclopedia.”
2. noun
A specialist in a particular field, especially one who compiles or writes a cyclopaedia on the subject.
“He is a renowned cyclopaedist in the field of ancient history.”