Definition of

Mediator

  1. (noun, person) a negotiator who acts as a link between parties

via WordNet, Princeton University

Origin of the word Mediator

  1. c.1300, from L.L. mediatorem (nom. mediator) "one who mediates," from mediatus, pp. of mediari "to intervene, mediate," also "to be or divide in the middle," from L. medius "middle" (see medial). Originally applied to Christ, who in Christian theology "mediates" between God and man. Meaning "one who intervenes between two disputing parties" is… more

via Online Etymology Dictionary, ©2001 Douglas Harper

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Word of the Moment

Mediacy

the quality of being mediate