noun, plural di·e·ses [dahy-uh-seez] /ˈdaɪ əˌsiz/. Printing.
noun plural -ses (-ˌsiːz)
- printing another name for double dagger
- (in ancient Greek theory) any interval smaller than a whole tone, esp a semitone in the Pythagorean scale
- (in modern theory) the discrepancy of pitch in just intonation between an octave and either a succession of four ascending minor thirds (great diesis), or a succession of three ascending major thirds (minor diesis)