perfect twelfth

noun

The interval between the first and third harmonics of the harmonic series. In twelve-tone equal temperament, it spans nineteen semitones or twelve degrees of the diatonic scale.

Similar
tritave
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Meanings

nounperfect twelfth (plural perfect twelfths)

plural perfect twelfths

  1. entertainmentThe interval between the first and third harmonics of the harmonic series. In twelve-tone equal temperament, it spans nineteen semitones or twelve degrees of the diatonic scale.

    Synonyms: tritave

Synonyms & antonyms

nounThe interval between the first and third harmonics of the harmonic series. In twelve-tone equal temperament, it spans nineteen semitones or twelve degrees of the diatonic scale.

Similar
tritave
Also see
tritave
Cite this entry
APA

perfect twelfth. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/perfect%20twelfth

MLA

“perfect twelfth.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/perfect%20twelfth. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “perfect twelfth,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/perfect%20twelfth.

Source: perfect twelfth on Wiktionary, CC BY-SA 4.0.