noundĭĕsisDIESIS☆ KeepMeaningA quarter-toneLewis & Short 1879ModernAs printed, 1879DIESISLEWIS & SHORTDIESISdĭĕsis, is, f., = δίεσις. In ancient music, I. A quarter-tone, Vitr. 5, 4; Macr. Somn. Scip. 2, 1 fin.—II. The first audible tone of an instrument, Vitr. 5, 3.Read the whole entry