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Added 9 October 2026

moderator

/ˈmɒdəˌɹeɪtə(ɹ)/ noun

Latin root: moderātor Wiktionary

noun Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about moderator at Wordnik → Where our words come from →

Any substance used to slow down neutrons in nuclear reactors.
In the Presbyterian church, the officer who presides over a synod or general assembly.
Someone who presides over a forum or debate.

Origin

Learned borrowing from Latin moderātor. First attested as Middle English moderatour. By surface analysis, moderate + -or.

From Wiktionary, via Kaikki.org (CC BY-SA)

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