Mus. [SUPER- 5 b.] The note next above the dominant; the sixth of the scale: more usually called SUBMEDIANT. Also attrib. applied to a chord having this note for its root.
c. 1833. J. Gwilt, Music, in Encycl. Metrop. (1845), V. 777/1. Superdominant, the sixth of the key in the descending scale.
1880. Stainer, Composition, § 26. The third degree of the minor scale can be part of the tonic, mediant, or super-dominant chords.
1889. E. Prout, Harmony, i. § 13. Some writers … call [the sixth note of the scale] the ‘Superdominant.’
