moderator
noun
mod·er·a·tor
ˈmä-də-ˌrā-tər 
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
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
The moderator of the panel was Eric Noble of The CARLAB.
—
Jan Wagner, San Diego Union-Tribune, 13 Apr. 2025
The company also faces claims by former content moderators who have alleged they were psychologically harmed on the job — watching hours of disturbing videos, including displays of bestiality, necrophilia and violence against children.
—Bloomberg, Mercury News, 4 Apr. 2025
Linda, a content moderator for an online video platform, spends the last Friday of every month flying from her windowless garage apartment in San Francisco to a regional airport in hopes of finding the plane of her dreams.
—Shannon Carlin, Time, 1 Apr. 2025
The Korean population of the Village has grown to about 2,500, according to program moderator SangKeun Park.
—Penny E Schwartz, Oc Register, 30 Mar. 2025
See All Example Sentences for moderator
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Jan Wagner, San Diego Union-Tribune, 13 Apr. 2025
The company also faces claims by former content moderators who have alleged they were psychologically harmed on the job — watching hours of disturbing videos, including displays of bestiality, necrophilia and violence against children.
—Bloomberg, Mercury News, 4 Apr. 2025
Linda, a content moderator for an online video platform, spends the last Friday of every month flying from her windowless garage apartment in San Francisco to a regional airport in hopes of finding the plane of her dreams.
—Shannon Carlin, Time, 1 Apr. 2025
The Korean population of the Village has grown to about 2,500, according to program moderator SangKeun Park.
—Penny E Schwartz, Oc Register, 30 Mar. 2025
See All Example Sentences for moderator
Cite this Entry
“Moderator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/moderator. Accessed 21 Apr. 2025.
Copy CitationKids Definition
moderator
noun
mod·er·a·tor
ˈmäd-ə-ˌrāt-ər
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
: a substance (as graphite, deuterium in heavy water, or beryllium) used for slowing down neutrons in a nuclear reactor
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