ĭn·ter·cĕs′sor, n.

n. [Lat., It. intercessore, Sp. intercesor, Fr. intercesseur. See INTERCEDE.] 1. One who goes between, or intercedes; one who interposes between parties at variance, with a view to reconcile them; one who pleads in behalf of another; a mediator. Milton. 2. (Eccl.) A bishop, who, during a vacancy of the see, administers the bishopric till a successor is elected.