D defs.my
Entry 2 senses · 2 variants Webster, 1913

Antiphonal

· An·tiph·o·nal · IPA /ænˈtɪfənəl/
01 a. Of or pertaining to antiphony, or alternate singing; sung alternately by a divided choir or opposite choirs.
  1. 1.
    Of or pertaining to antiphony, or alternate singing; sung alternately by a divided choir or opposite choirs.
02 n. A book of antiphons or anthems.
  1. 1.
    A book of antiphons or anthems.