Source : Webster's Revised Unabridged Dictionary (1913)

Antiphonary \An*tiph"o*na*ry\, n. [LL. antiphonarium. See
   {Antiphoner}.]
   A book containing a collection of antiphons; the book in
   which the antiphons of the breviary, with their musical
   notes, are contained.

Source : WordNet®

antiphonary
     adj : relating to or resembling an antiphon [syn: {antiphonal}]
     n : bound collection of antiphons [syn: {antiphonal}]