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

Qatar is one of the leading mediators attempting to secure a deal, along with the U.S. and Egypt. —NBC News, 4 Apr. 2024

Smith said some community mediators did not have a positive perception of the police. —Kamal Morgan, Fort Worth Star-Telegram, 3 Apr. 2024

Any judge, jury, mediator or arbitrator will resist rewarding your contentious uncle’s campaign of deception. —Pat Kapowich, The Mercury News, 23 Mar. 2024

The carrier has been in on-and-off conflicts with labor unions over pay, and the two sides have called in a mediator to end the disruptions, particularity as the busy travel Easter travel season beckons. —Benedikt Kammel, Fortune Europe, 21 Mar. 2024

Hamas gave mediators a new proposal for a three-stage plan that would end the fighting, according to two Egyptian officials, one who is involved in the talks, and a second who was briefed on them. —Samy Magdy, The Christian Science Monitor, 16 Mar. 2024

At the same time, board members met with mediators to try to work out a settlement. —Silas Allen, Fort Worth Star-Telegram, 25 Mar. 2024

International mediators had hoped to secure a six-week truce before Ramadan started last week, but Hamas refused any deal that wouldn’t lead to a permanent cease-fire in Gaza, a demand Israel rejected. —USA TODAY, 18 Mar. 2024

International mediators had hoped to secure a six-week truce before Ramadan started last week, but Hamas refused any deal that wouldn't lead to a permanent cease-fire in Gaza, a demand Israel rejected. —Democrat-Gazette Staff From Wire Reports, arkansasonline.com, 17 Mar. 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