Mod"er*a`tor (?), n. [L.: cf. F.
modérateur.] 1. One who, or that
which, moderates, restrains, or pacifies. Sir W.
Raleigh.
Angling was . . . a moderator of
passions.
Walton.
2. The officer who presides over an assembly
to preserve order, propose questions, regulate the proceedings, and
declare the votes.
3. In the University of Oxford, an examiner
for moderations; at Cambridge, the superintendant of examinations for
degrees; at Dublin, either the first (senior) or second (junior) in
rank in an examination for the degree of Bachelor of Arts.
4. A mechanical arrangement for regulating
motion in a machine, or producing equality of effect.
