major third

noun

A musical interval in Western music that is equal to or approximates a frequency ratio of 5/4. In twelve-tone equal temperament, it consists of four standard semitones, spans three degrees of the diatonic scale, and is enharmonically equivalent to a diminished fourth. Major scales are so named because of the major third interval between the tonic and mediant of a major tonic triad.

Meanings

nounmajor third (plural major thirds)

plural major thirds

  1. entertainmentA musical interval in Western music that is equal to or approximates a frequency ratio of 5/4. In twelve-tone equal temperament, it consists of four standard semitones, spans three degrees of the diatonic scale, and is enharmonically equivalent to a diminished fourth. Major scales are so named because of the major third interval between the tonic and mediant of a major tonic triad.

Translations

Chinese Mandarin 大三度
  • 大三度 (dàsāndù)interval of four semitones
Dutch grote terts
  • grote tertsinterval of four semitones
Finnish suuri terssi
  • suuri terssiinterval of four semitones
French tierce majeure
  • tierce majeureinterval of four semitones
German große Terz
  • große Terzinterval of four semitones
Greek τρίτη μεγάλη
  • τρίτη μεγάλη (tríti megáli)interval of four semitones
Hawaiian lele kolu
  • lele koluinterval of four semitones
Hungarian nagyterc
  • nagytercinterval of four semitones
Icelandic stór þríund
  • stór þríundinterval of four semitones
Italian terza maggiore
  • terza maggioreinterval of four semitones
Japanese 長三度
  • 長三度 (chōsando)interval of four semitones
Polish tercja wielka
  • tercja wielkainterval of four semitones
Russian больша́я те́рция
  • больша́я те́рция (bolʹšája tɛ́rcija)interval of four semitones
Swedish stor ters, durters
  • stor tersinterval of four semitones
  • durtersinterval of four semitones
Cite this entry
APA

major third. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/major%20third

MLA

“major third.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/major%20third. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “major third,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/major%20third.

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