Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun moderator

4 senses of moderator

Sense 1
moderator -- (any substance used to slow down neutrons in nuclear reactors)
       => inhibitor -- (a substance that retards or stops an activity)

Sense 2
moderator -- (in the Presbyterian church, the officer who presides over a synod or general assembly)
       => presiding officer -- (the leader of a group meeting)

Sense 3
moderator -- (someone who presides over a forum or debate)
       => presiding officer -- (the leader of a group meeting)

Sense 4
moderator -- (someone who mediates disputes and attempts to avoid violence)
       => mediator, go-between, intermediator, intermediary, intercessor -- (a negotiator who acts as a link between parties)