seventh chord

noun

, Music.

1. a chord formed by the superposition of three thirds.

seventh chord

noun

1. See minor seventh chord, major seventh chord, diminished seventh chord, dominant seventh chord
   music a chord consisting of a triad with a seventh added above the root See dominant seventh chord diminished seventh chord major seventh chord minor seventh chord

Word History and Origins

Origin of seventh chord¹

First recorded in 1905–10

Example Sentences

A note may now be repeated in the lowest part when it becomes the seventh of a dominant seventh-chord.

From Project Gutenberg