diapason

/ˌdaɪəˈpeɪzən/
noun
  1. A full, rich range or sweep of something, especially musical notes or sounds.
    • The poet's work covers the whole diapason of human emotion.
    • Her voice had a diapason that could move from a whisper to a powerful cry.
    • The orchestra filled the hall with a glorious diapason of sound.
  2. A standard of pitch or tuning; a tuning fork or similar device.
    • The choir tuned their voices to the diapason given by the organ.
    • In ancient music, the diapason was the interval of an octave.
    • The piano tuner used a diapason to set the correct pitch.
  3. A principal stop on a pipe organ, producing a full, foundational tone.
    • The deep diapason of the organ resonated through the cathedral.
    • The organist pulled out the diapason stop for the hymn.
    • He preferred the warm sound of the diapason over the reeds.
What does "diapason" mean? | whatsthatwordmean | whatsthatwordmean