Etymology

Noun

1. the range or scope of something, especially of notes in a scale, or of a particular musical instrument

   • 1934: the piano curving like a conch, corollas giving out diapasons of light — Henry Miller, Tropic of Cancer
   • 1961: he could hear nothing except the rattle of the crickets and the swelling diapason of the frogs — Graham Greene, A Burnt-Out Case

Etymology

Noun

1. range, diapason
2. a tuning fork