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polytonal

[pol-ee-tohn-l]
adjective Music.
  1. marked by or using polytonality.
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Origin of polytonal

First recorded in 1920–25; poly- + tonal
Related formspol·y·ton·al·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018