Noun

The state or quality of being moderate; avoidance of extremes

* {{quote-book

, passage=...It regulates and governs the Passions of the Mind, and brings them into due moderation and frame... , page=17 , title=An Account of the Growth of Deism in England , author=William Stephens , year=1696}}

* 1772 , , [http://books.google.com/books?id=twVuAAAAMAAJ&pg=PA394]:

Mr. Chairman, at this moment I stand astonished at my own moderation !

* 1821 October 12, , [http://books.google.com/books?id=5q4XBa5jsy8C&pg=PA7]:

America is a model of force and freedom and moderation - with all the coarseness and rudeness of its people.

An instance of moderating: bringing something away from extremes, especially in a beneficial way

* {{quote-news, year=1936, date=March, work=The Southern Lumberman citation

, passage=With the quick moderation of the weather some buying has appeared that had been held up because of the extremely cold weather

The process of moderating a discussion

The moderation of a large online forum can be hard work.

Noun

(en noun)

someone who moderates

* Walton

Angling was a moderator of passions.

# an arbitrator or mediator

# the chair or president of a meeting etc.

the person who presides over a synod of a Presbyterian Church

(physics) a substance (often water or graphite) used to decrease the speed of fast neutrons in a nuclear reactor and hence increase likelihood of fission

a device used to deaden some of the noise from a firearm, although not to the same extent as a suppressor or silencer.

(UK) An examiner at Oxford and Cambridge universities.

* '>citation

(Ireland) At the University of Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts.

A mechanical arrangement for regulating motion in a machine, or producing equality of effect.