Hep"ta*chord (?), n. [Gr. "epta`xordos seven-stringed; "epta` seven + xordh` chord: cf. F. heptacorde. See Seven, and Chord.]
1. Anc. Mus. (a)
A system of seven sounds.
(b)
A lyre with seven chords.
2. Anc. Poet.
A composition sung to the sound of seven chords or tones.
Moore (Encyc. of Music).
© Webster 1913.