diapason definition - Dictionary

Dictionary

di·a·pa·son [ d ə páyz'n, d ə páyss'n ] (plural di·a·pa·sons)

noun

Definition:

1. pipe organ's main stop: one of two main stops on a pipe organ that control the organ's tone and characteristic sound

2. musical range: the range of a musical instrument or of somebody's singing voice ( technical )

3. tuning device: a tuning fork or pitch pipe ( technical )

[14th century. Via Latin< Greek dia pasōn khordōn "across all the notes of the scale"]

di·a·pa·son·al adjective