An
Antiphonary,
Antiphonal, "Antiphony" or
Antiphoner (Latin
antiphonarium, antiphonarius, antiphonarius liber, antiphonale; Greek
’antíphonon, antiphon, antiphone, anthem) is one of the
liturgical books intended for use
in choro (i. e. in the
liturgical choir), and originally characterized, as its name implies, by the assignment to it principally of the
antiphons used in various parts of the Roman
liturgy.