antiphonal adj 1: containing or using responses; alternating; "responsive reading"; "antiphonal laughter" [syn: {responsive}, {antiphonal}] 2: relating to or resembling an antiphon or antiphony [syn: {antiphonary}, {antiphonal}] n 1: bound collection of antiphons [syn: {antiphonary}, {antiphonal}]
Antiphonal \An*tiph"o*nal\, a. Of or pertaining to antiphony, or alternate singing; sung alternately by a divided choir or opposite choirs. --Wheatly. -- {An*tiph"o*nal*ly}, adv. [1913 Webster]
Antiphonal \An*tiph"o*nal\, n. A book of antiphons or anthems. [1913 Webster]