Definitions
1.nounSomeone who moderates
2.nounThe person who presides over a synod of a Presbyterian Church
3.nounA substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission
4.nounA device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.
5.nounAn examiner at Oxford and Cambridge universities.
6.nounAt the University of Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts.
7.nounSomeone who supervises and monitors the setting and marking of examinations by different people to ensure consistency of standards.
8.nounA mechanical arrangement for regulating motion in a machine, or producing equality of effect.
9.nounA kind of lamp in which the flow of the oil to the wick is regulated.