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  1. Oxford American Dictionary

    moderator

    • IPA[ˈmädəˌrādər]

    美式

    • n.
      an arbitrator or mediator；a presiding officer, especially a chairman of a debate

    • noun: moderator, plural noun: moderators

    • 釋義

    名詞

    • 1. an arbitrator or mediator Egypt managed to assert its role as a regional moderator
    • ▪ a presiding officer, especially a chairman of a debate the debates will each feature one moderator and a panel of three questioners
    • ▪ a Presbyterian minister presiding over an ecclesiastical body the newly elected Moderator of the Dutch Reformed Church
    • 2. a person who moderates an internet forum or online discussion.
    • 3. a substance used in a nuclear reactor to retard neutrons in a fast reactor there is no moderator to slow the reaction down