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 author also announced that After series author Anna Todd would be the new moderator for Gage’s event.
—
Carly Tagen-Dye, PEOPLE, 20 Oct. 2025
The moderator requested a show of hands for who supports Hochul for reelection in New York’s next gubernatorial election, scheduled for November 3, 2026.
—Robert Birsel, MSNBC Newsweek, 17 Oct. 2025
While attendees chuckled, both companies’ respective consumer data suggest that the moderator’s question was pretty standard.
—Alexandra Harrell, Sourcing Journal, 16 Oct. 2025
Spanberger never responded to Earle-Sears’ taunts and dodged when moderators pressed her about whether Jones should drop out.
—Rachel Schilke, The Washington Examiner, 16 Oct. 2025
See All Example Sentences for moderator
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Carly Tagen-Dye, PEOPLE, 20 Oct. 2025
The moderator requested a show of hands for who supports Hochul for reelection in New York’s next gubernatorial election, scheduled for November 3, 2026.
—Robert Birsel, MSNBC Newsweek, 17 Oct. 2025
While attendees chuckled, both companies’ respective consumer data suggest that the moderator’s question was pretty standard.
—Alexandra Harrell, Sourcing Journal, 16 Oct. 2025
Spanberger never responded to Earle-Sears’ taunts and dodged when moderators pressed her about whether Jones should drop out.
—Rachel Schilke, The Washington Examiner, 16 Oct. 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 25 Oct. 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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