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Moderator

Moderator

WordNet



noun


(1)   Someone who mediates disputes and attempts to avoid violence
(2)   Someone who presides over a forum or debate
(3)   In the Presbyterian church, the officer who presides over a synod or general assembly
(4)   Any substance used to slow down neutrons in nuclear reactors
Wiktonary



Noun



  1. someone who moderates
    1. an arbitrator or mediator
    2. the chairman or president of a meeting etc
  2. the person who presides over a synod of a Presbyterian Church
  3. a substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission


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