noun
mediator
MEE-dee-ayt
noun
1
A neutral person who helps two disagreeing sides reach an agreement.
"The union brought in a mediator to help negotiate the new contract."
"She worked as a mediator specializing in workplace disputes."
2
In biology, a chemical that carries a signal to a target cell.
"Histamine is a chemical mediator released during an allergic reaction."
How to Use Mediator
Learner’s notesIn plain EnglishThe neutral person (or, in science, the chemical signal) that stands between two sides and makes communication or resolution possible.
Common pairings
act as a mediator
neutral mediator
chemical mediator
Word Forms
mediators plural
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The union brought in a _____ to help negotiate the new contract.
Etymology
From Latin mediātor, "one who mediates," from mediāre ("to be in the middle").