Moderation - AbsoluteAstronomy.com

Moderation is the process of eliminating or lessening extremes. It is used to ensure normality throughout the medium on which it is being conducted. Common uses of moderation include:

Ensuring consistency and accuracy in the marking of student assessments.
A moderator may remove unsuitable contributions from the website
Website
A website, also written as Web site, web site, or simply site, is a collection of related web pages containing images, videos or other digital assets. A website is hosted on at least one web server, accessible via a network such as the Internet or a private local area network through an Internet...

, forum
Internet forum
An Internet forum, or message board, is an online discussion site where people can hold conversations in the form of posted messages. They differ from chat rooms in that messages are at least temporarily archived...

or IRC channel they represent in accordance with their moderation system
Moderation system
On Internet websites which invite users to post comments, a moderation system is the method the webmaster chooses to sort contributions which are irrelevant, obscene, illegal, or insulting with regards to useful or informative contributions....

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A more proactive nuance is found in the Methodist church's use of the term for the heads of its conferences.
A neutron moderator
Neutron moderator
In nuclear engineering, a neutron moderator is a medium that reduces the speed of fast neutrons, thereby turning them into thermal neutrons capable of sustaining a nuclear chain reaction involving uranium-235....

is used to slow down neutron
Neutron
The neutron is a subatomic hadron particle which has the symbol or , no net electric charge and a mass slightly larger than that of a proton. With the exception of hydrogen, nuclei of atoms consist of protons and neutrons, which are therefore collectively referred to as nucleons. The number of...

s in a nuclear reactor
Nuclear reactor
A nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. Most commonly they are used for generating electricity and for the propulsion of ships. Usually heat from nuclear fission is passed to a working fluid , which runs through turbines that power either ship's...

.
A way of life emphasizing perfect amounts of everything, not indulging in too much of one thing, hence moderation.
A lifestyle choice by which many college
Party school
A party school is a college or university that has a reputation for heavy alcohol and drug use or a general culture of licentiousness. The best-known list of alleged party schools is published annually by The Princeton Review. The magazine Playboy also releases a list of party schools on an...

students abide by so as not to become alcoholics.

Moderation is also a principle of life.