me·​di·​a·​tor | \ ˈmē-dē-ˌā-tər How to pronounce mediator (audio) \

Definition of mediator

1 : one that mediates especially : one that mediates between parties at variance
2 : a mediating agent in a physical, chemical, or biological process

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Examples of mediator in a Sentence

if you two cannot resolve this argument on your own, we'll have to bring in a mediator

Recent Examples on the Web

But after huge protests against the military on Sunday, African mediators brokered a return to direct talks. Reuters, The Mercury News, "U.S. welcomes Sudan power-sharing deal as ‘important step forward’," 6 July 2019 The Board of Supervisors, acting in closed session on advice from county attorneys, rejected the mediator’s suggestion, according to Collins’ lawyer, Robert Vaage. San Diego Union-Tribune, "San Diego County grappling with largest jury award in decades," 18 Aug. 2019 The settlement talks have been fostered by Kenneth Feinberg, a mediator called in by U.S. District Judge Vince Chhabria in San Francisco, who's overseeing cases consolidated in federal court. Bloomberg News,, "Bayer proposes paying $8 billion to settle Roundup cancer claims," 9 Aug. 2019 All parties are now in the process of selecting a mediator for future proceedings. Justin Phillips,, "One of San Francisco’s last blues venues faces closure as it battles Jack in the Box," 3 Aug. 2019 Under one option under discussion, Khalilzad would act as the mediator for the first round of the talks, a Western official and a former U.S. official told NBC News. NBC News, "Trump administration moves closer to deal with Taliban," 2 Aug. 2019 The mediator flew up to Juneau from Seattle, left after about 20 hours of talks and then came back Tuesday night. Annie Zak, Anchorage Daily News, "Alaska ferry workers union and state reach tentative contract deal; Saturday is earliest some sailings could resume," 2 Aug. 2019 New evidence can be submitted to the mediator as paperwork, be brought up in a meeting, or both. Mary Pilon, Fortune, "'How Much Is a Little Girl Worth?': The Painful Financial Fallout of the Larry Nassar Case," 27 June 2019 Instead the mediator simply recommends a course of action, but if one or both sides reject that, the litigation could resume. Kevin Baxter,, "U.S. Soccer and USWNT players agree to mediation over pay dispute," 22 June 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mediator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of mediator

14th century, in the meaning defined at sense 1

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Statistics for mediator

Last Updated

5 Sep 2019

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Time Traveler for mediator

The first known use of mediator was in the 14th century

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me·​di·​a·​tor | \ ˈmēd-ē-ˌāt-ər How to pronounce mediator (audio) \

Medical Definition of mediator

: one that mediates especially : a mediating agent (as an enzyme or hormone) in a chemical or biological process substance P, a neuropeptide mediator of analgesic stimuli in peripheral sensory nerves — D. R. Robinson


me·​di·​a·​tor | \ ˈmē-dē-ˌā-tər How to pronounce mediator (audio) \

Legal Definition of mediator

: one that works to effect reconciliation, settlement, or compromise between parties at variance — compare arbitrator

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More from Merriam-Webster on mediator

Rhyming Dictionary: Words that rhyme with mediator

Thesaurus: All synonyms and antonyms for mediator

Spanish Central: Translation of mediator

Nglish: Translation of mediator for Spanish Speakers

Britannica English: Translation of mediator for Arabic Speakers

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readily or continually undergoing change

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