intermediate

a substance formed during a chemical process before the desired product is obtained

act between parties with a view to reconciling differences; "He interceded in the family dispute"; "He mediated a settlement"

lying between two extremes in time or space or state; "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"

around the middle of a scale of evaluation; "an orange of average size"; "intermediate capacity"; "medium bombers"