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Definition of "moderator" []

  • One that moderates, as: (noun)
  • One that arbitrates or mediates. (noun)
  • One who presides over a meeting, forum, or debate. (noun)
  • The officer who presides over a synod or general assembly of the Presbyterian Church. (noun)
  • Physics A substance, such as water or graphite, that is used in a nuclear reactor to decrease the speed of fast neutrons and increase the likelihood of fission. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

Use "moderator" in a sentence
  • "_moderator_ of a moderated group decides not to accept anon postings (and it's within the groups charter), then fine, and that should be in the FAQ (if it's not in the charter, the moderator should be replaced ASAP)."
  • "Monbiot again, and the moderator is asking about potential benefits from rising temperatures, e.g. for Canada."
  • "• Anonymous comments are approved when a moderator is available to do so."