0 someone who tries to help other people come to an agreement:
An independent moderator should be appointed to oversee the negotiations.
He challenged the president to a series of TV debates. Just the two of them, with no moderator.
The final marks awarded for coursework will depend upon the moderator.
1 a substance that slows neutrons in a nuclear reactor
2 the manager of a public discussion:
3 someone who controls and leads a discussion between a group of people, but does not take any side in it:
A panel of business people will ask the candidates questions, with a local journalist as moderator.
4 someone who makes sure that the rules of an internet discussion are not broken, for example by removing any threatening or offensive comments:
