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Someone who moderates
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The person who presides over a synod of a Presbyterian Church
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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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A device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.
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An examiner at Oxford and Cambridge universities.
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At the University of Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts.
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Someone who supervises and monitors the setting and marking of examinations by different people to ensure consistency of standards.
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A mechanical arrangement for regulating motion in a machine, or producing equality of effect.
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A kind of lamp in which the flow of the oil to the wick is regulated.