moderator
/ˈmɒdəˌɹeɪtə(ɹ)/ noun
Forms moderators moderatour
- noun Someone who moderates.
- noun An arbitrator or mediator.
- noun The chair or president of a meeting, etc.
- noun (Internet) A person who enforces the rules of a discussion forum by deleting posts, banning users, etc.
- noun The person who presides over a synod of a Presbyterian church.
- noun (nuclear physics) A substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission.
- noun A device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.
- noun (UK) An examiner at Oxford and Cambridge universities.
Synonyms
Etymology
Learned borrowing from Latin moderātor. First attested as Middle English moderatour. By surface analysis, moderate + -or.
Webster’s 1913
- noun One who, or that which, moderates, restrains, or pacifies. Sir W. Raleigh.
- noun The officer who presides over an assembly to preserve order, propose questions, regulate the proceedings, and declare the votes.
Etymology [L.: cf. F. modérateur.]
Sources: Wiktionary · Webster’s 1913 — from the Wiktionary entry “moderator”, CC BY-SA 4.0. Details