1 not extreme or excessive; within due or reasonable limits
2 not violent; mild or temperate
3 of average quality or extent
4 a person who holds moderate views, esp. in politics
5 to become or cause to become less extreme or violent
6 when intr, often foll by: over to preside over a meeting, discussion, etc.
7 (Brit. and N.Z.) to act as an external moderator of the overall standards and marks for (some types of educational assessment)
8 (Physics) to slow down (neutrons), esp. by using a moderator (C14: from Latin moderatus observing moderation, from moderari to restrain)
n a wind of force four on the Beaufort scale
n a gale of force seven on the Beaufort scale, capable of swaying trees
English Collins Dictionary - English Definition & Thesaurus
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