Octachord \Oc"ta*chord\, n. [Gr. ? with eight strings; 'okta- (for 'oktw` eight) + ? string, chord: cf. F. octacorde.] (Mus.) An instrument of eight strings; a system of eight tones. [Also written {octochord}.] [1913 Webster]
Octochord \Oc"to*chord\, n. (Mus.) See {Octachord}. [1913 Webster]