Intermediary

a.	1.	Lying, coming, or done, between; intermediate; as, an intermediary project. Intermediary amputation (Surg.) an amputation for injury, performed after inflammation has set in.
n.	1.	One who, or that which, is intermediate; an interagent; a go-between; a mediator.

Noun

1.

intermediary - a negotiator who acts as a link between parties Synonyms: go-between, intercessor, intermediator, mediator

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