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
From there, invite women and other minorities to participate as speakers, panelists and moderators.
—
Anou Khot, Forbes.com, 4 Apr. 2025
Willard didn’t get a chance to finish his thought, though, because a phone went off in the press room and — when it couldn’t be silenced quickly — the moderator ended Willard’s session with the media.
—Lindsay Schnell, New York Times, 28 Mar. 2025
The nine-city book tour launches in Washington, D.C. on April 30 with special guest and former First Lady Michelle Obama joining Knowles as the evening’s moderator.
—Gail Mitchell, Billboard, 19 Mar. 2025
The film writer, critic, programmer and moderator has been part of the festival programming team since its inaugural edition in 2001, when there was still a lot of scepticism and pushback in the wider film world about the event.
—Melanie Goodfellow, Deadline, 13 Mar. 2025
See All Example Sentences for moderator
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Anou Khot, Forbes.com, 4 Apr. 2025
Willard didn’t get a chance to finish his thought, though, because a phone went off in the press room and — when it couldn’t be silenced quickly — the moderator ended Willard’s session with the media.
—Lindsay Schnell, New York Times, 28 Mar. 2025
The nine-city book tour launches in Washington, D.C. on April 30 with special guest and former First Lady Michelle Obama joining Knowles as the evening’s moderator.
—Gail Mitchell, Billboard, 19 Mar. 2025
The film writer, critic, programmer and moderator has been part of the festival programming team since its inaugural edition in 2001, when there was still a lot of scepticism and pushback in the wider film world about the event.
—Melanie Goodfellow, Deadline, 13 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 8 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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