One that mediates, especially one that reconciles differences between disputants.(noun)
Physiology A substance or structure that mediates a specific response in a bodily tissue.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "mediator" in a sentence
"He looks upon them only _through their mediator_; and what He sees to commend, is seen and commended only through, and on account of, their mediator."
"The term mediator means that Jesus is the implementer and enforcer of the promises of the new agreement."
"The role of mediator is likely to provide another sticking point."