English

Noun

semidiapente ‎(plural semidiapentes)

1. (music, archaic) A diminished fifth.
   • Vincenzo Galilei, ‎Dialogue on Ancient and Modern Music (translated from Italian by Claude V. Palisca)

     It will have its true ratio from the tritone and the major semitone, but not from that of the semidiapente and the minor semitone, as the next calculation shows.