moderator
n
1 person who arbitrates in a dispute; mediator 仲裁人; 調解人.
2 person who makes sure that the same standards areused by different examiners when marking an examination 評分監督(統一各主考人評分標準者).
3 Presbyterian minister presiding over a church court 長老會教會法庭上的主持者.
4 (physics 物) substance in which neutrons are slowed down in a nuclear reactor 減速劑, 慢化劑(核反應堆中使中子減速的物質).