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See more synonyms for octachord on Thesaurus.com
  1. any musical instrument with eight strings.
  2. a diatonic series of eight tones.
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Origin of octachord

First recorded in 1750–60, octachord is from the Greek word oktáchordos having eight strings. See octa-, chord1
Related formsoc·ta·chor·dal, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for octachord

Historical Examples

  • Octachord, ok′ta-kord, n. a musical instrument with eight strings: a diatonic series of eight tones.

    Chambers's Twentieth Century Dictionary (part 3 of 4: N-R)


British Dictionary definitions for octachord


  1. an eight-stringed musical instrument
  2. a series of eight notes, esp a scale
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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