submediant

The sixth tone of a diatonic scale.

In music, the tone of a scale midway between the subdominant and the upper tonic; the sixth, as B in the scale of D. Also called superdominant.

The sixth tone of the scale; the under mediant, or third below the keynote; the superdominant.

The sixth note of a scale, shown as VI.

(music) the sixth note of a major or minor scale (or the third below the tonic)