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Webster 1913 Edition

Noun.

[L.

medians

, p. p. of

mediare

to halve: cf. It.

mediante

, F.

médiante

(Mus.)

The third above the keynote; – so called because it divides the interval between the tonic and dominant into two thirds.

Noun.

In music, an appellation given to the third above the key-note, because it divides the interval between the tonic and dominant into thirds.