mediator

noun

me·​di·​a·​tor ˈmē-dē-ˌā-tər 

1

: one that mediates

especially : one that mediates between parties at variance

2

: a mediating agent in a physical, chemical, or biological process

Synonyms

• broker
• buffer
• conciliator
• go-between
• honest broker
• interceder
• intercessor
• intermediary
• intermediate
• interposer
• middleman
• peacemaker

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

Related article The Israel-Hezbollah ceasefire in 4 maps and charts Qatar, a key mediator in previous Gaza ceasefire negotiations, stepped back from its role this month and shut Hamas’ political office in the capital Doha after concluding that the two sides are no longer negotiating in good faith. —Mostafa Salem, CNN, 30 Nov. 2024

State of play: A Hamas delegation arrived in Cairo on Saturday for talks with Egyptian mediators about the Gaza hostage and ceasefire deal. —Barak Ravid, Axios, 30 Nov. 2024

If direct communication remains difficult, involving a neutral mediator or even seeking family therapy could help rebuild trust and mend their relationship. —Yaakov Katz, Newsweek, 28 Nov. 2024

If federal mediators support the union going on strike, the union must enter a 30-day cooling-off period before stopping work. —Quinlan Bentley, The Enquirer, 13 Nov. 2024

Word History

First Known Use

14th century, in the meaning defined at sense 1

Kids Definition

mediator

noun

me·​di·​a·​tor ˈmēd-ē-ˌāt-ər 

: one that mediates

mediatory

-ē-ə-ˌtōr-ē

-ˌtȯr-

adjective

Medical Definition

mediator

noun

me·​di·​a·​tor ˈmēd-ē-ˌāt-ər 

: 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

Legal Definition

mediator

noun

me·​di·​a·​tor ˈmē-dē-ˌā-tər 

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