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moderator

 
Noun moderator has 4 senses
  1. moderator - any substance used to slow down neutrons in nuclear reactors
    --1 is a kind of
    inhibitor
    --1 is a part of nuclear reactor, reactor
    --1 has particulars: heavy water, deuterium oxide
  2. moderator - in the Presdyterian church, the officer who presides over a synod or general assembly
    --2 is a kind of
    presiding officer
  3. moderator - someone who presides over a forum or debate
    --3 is a kind of
    presiding officer
    Derived form: verb moderate1
  4. moderator - someone who mediates disputes and attempts to avoid violence
    --4 is a kind of
    mediator, go-between, intermediator, intermediary, intercessor
    --4 has particulars: modifier
    Derived form: verb moderate6
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