moderator

noun

mod·​er·​a·​tor ˈmä-də-ˌrā-tər How to pronounce moderator (audio)
plural moderators
1
: someone who presides over an assembly, meeting, or discussion: such as
a
: the chairman of a discussion group
b
: a person who administers an online forum, chat room, or group
c
: the nonpartisan presiding officer of a town meeting
d
: the presiding officer of a Presbyterian governing body
2
: one who arbitrates : mediator
3
: a substance (such as graphite) used for slowing neutrons in a nuclear reactor
moderatorship noun

Examples of moderator in a Sentence

The moderator allowed audience members to ask the governor questions. She acts as the moderator in our office meetings.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Following his debate with Vice President Kamala Harris, Trump lashed out at ABC over the moderators' fact-checking efforts. David Faris, Newsweek, 4 Nov. 2024 In other words, moderators in Reddit who remove comments that run afoul of their own political views. Matthew Dolan, Detroit Free Press, 4 Nov. 2024 The topic has been absent from the presidential debate (and the debate moderators are partially responsible for this). Penny Abeywardena, Forbes, 3 Nov. 2024 There were also a couple of trolls purporting to vote for former President Donald Trump, whose rude—some said, racist—comments had compelled the moderators to close down the call’s chat room. Leslie Camhi, Vogue, 30 Oct. 2024 See all Example Sentences for moderator 

Word History

First Known Use

circa 1560, in the meaning defined at sense 2

Time Traveler
The first known use of moderator was circa 1560

Dictionary Entries Near moderator

Cite this Entry

“Moderator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moderator. Accessed 1 Dec. 2024.

Kids Definition

moderator

noun
mod·​er·​a·​tor ˈmäd-ə-ˌrāt-ər How to pronounce moderator (audio)
1
: one that moderates: as
a
: the leader of a Presbyterian governing body
b
: the chairperson of a town meeting
c
: the chairperson of a discussion group (as on television)
2
: a substance (as graphite) used for slowing down neutrons in a nuclear reactor

Medical Definition

moderator

noun
mod·​er·​a·​tor ˈmäd-ə-ˌrāt-ər How to pronounce moderator (audio)
: a substance (as graphite, deuterium in heavy water, or beryllium) used for slowing down neutrons in a nuclear reactor

More from Merriam-Webster on moderator

Last Updated: - Updated example sentences
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