intermediate

(noun) a substance formed during a chemical process before the desired product is obtained.

(verb) act between parties with a view to reconciling differences. Synonyms: intercede, mediate, liaise, arbitrate. Examples: "He interceded in the family dispute." "He mediated a settlement."

(adj) lying between two extremes in time or space or state. Synonyms: intermediate (vs. terminal). Examples: "Going from sitting to standing without intermediate pushes with the hands." "Intermediate stages in a process." "Intermediate stops on the route." "An intermediate range plane."

(adj) around the middle of a scale of evaluation. Synonyms: average, medium. Examples: "An orange of average size." "Intermediate capacity." "Medium bombers."