Octachord
Pronunciation : Oc"ta*chord
Part of Speech : n.
Etymology : [Gr. octacorde.] (Mus.)
Definition : Defn: An instrument of eight strings; a system of eight tones. [Also written octochord.]
Source : Webster's Unabridged Dictionary, 1913
Merriam-Webster's Everyday Language Reference Set: Includes: The Merriam-Webster Dictionary, The Merriam-Webster Thesaurus, and The Merriam-Webster Vocabulary Builder