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

But eventually, the mediators got Walker and other foundation leaders to come aboard. —Jc Reindl, Detroit Free Press, 3 Dec. 2024

Hezbollah ‘will come back bigger and stronger’ While mediators hope the ceasefire deal and Resolution 1701 could form the basis of a lasting truce, many northern Israelis are less optimistic. —Jeremy Diamond and Mike Schwartz, CNN, 27 Nov. 2024

The Israel-Hezbollah ceasefire has little direct impact on the crisis in Gaza, where foreign mediators have attempted to broker a truce. —Hannah Parry, Newsweek, 27 Nov. 2024

Workers on strike at the IKEA Distribution Center in Perryville were set to meet with the home furnishings retailer and a federal mediator Thursday and Friday. —Lorraine Mirabella, Baltimore Sun, 21 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