To interpose between parties, as the equal friend of each, esp. for the purpose of effecting a reconciliation or agreement; as, to mediate between nations.
occupy an intermediate or middle position or form a connecting link or stage between two others; "mediate between the old and the new"
acting through or dependent on an intervening agency; "the disease spread by mediate as well as direct contact"
being neither at the beginning nor at the end in a series; "adolescence is an awkward in-between age"; "in a mediate position"; "the middle point on a line"