moderator

nouns

any substance used to slow down neutrons in nuclear reactors
moderator
is a part of
(physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements
nuclear reactor, reactor
is a type of (narrower)
a substance that retards or stops an activity
inhibitor
in the Presbyterian church, the officer who presides over a synod or general assembly
moderator
is derived from
moderatorship
is a type of (narrower)
the leader of a group meeting
presiding officer
someone who presides over a forum or debate
moderator
is derived from
moderatorship
is derived from
moderate
is a type of (narrower)
the leader of a group meeting
presiding officer
someone who mediates disputes and attempts to avoid violence
moderator
is derived from
moderatorship
is derived from
moderate
is a type of (narrower)
a negotiator who acts as a link between parties
go-between, intercessor, intermediary, intermediator, mediator