Definition for DI-A-TES'SA-RON

DI-A-TES'SA-RON, n. [Gr. δια and τεσσαρα, four.]

Among musicians, a concord or harmonic interval, composed of a greater tone, a lesser tone, and one greater semitone. Its proportion is as 4 to 3, and it is called a perfect fourth. – Harris.

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