noun
a gapped scale with five notes; usually the fourth and seventh notes of the diatonic scale are omitted
• Syn: ↑pentatone
• Derivationally related forms: ↑pentatonic (for: ↑pentatone)
• Hypernyms: ↑gapped scale
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noun : a musical scale of five tones in which the octave is reached at the sixth tone; specifically : a scale in which the tones are arranged like a major scale with its fourth and seventh tones omitted
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/pen"teuh ton"ik, pen'-/, Music.
a scale having five tones to an octave, as one having intervals that correspond to the five black keys of a piano octave.
[1860-65; PENTA- + TONIC]
Useful english dictionary. 2012.