augmented third

noun

an interval that is equivalent to a major third widened by one chromatic semitone. In twelve-tone equal temperament, this is equivalent to a perfect fourth.

“An augmented third on C: 1”

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Meanings

nounaugmented third (plural augmented thirds)

plural augmented thirds

  1. entertainmentan interval that is equivalent to a major third widened by one chromatic semitone. In twelve-tone equal temperament, this is equivalent to a perfect fourth.

    An augmented third on C: 1

Cite this entry
APA

augmented third. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/augmented%20third

MLA

“augmented third.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/augmented%20third. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “augmented third,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/augmented%20third.

Source: augmented third on Wiktionary, CC BY-SA 4.0.