- any musical instrument with eight strings.
- a diatonic series of eight tones.
Origin of octachord
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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Octachord, ok′ta-kord, n. a musical instrument with eight strings: a diatonic series of eight tones.
- an eight-stringed musical instrument
- a series of eight notes, esp a scale
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012