one of the principal
stops of an organ, covering
the instrument's complete
range and producing its characteristic tone quality
a standard of musical pitch
Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by
Houghton Mifflin Harcourt. All rights reserved.
Word origin of 'diapason'ME diapasoun < L diapason < Gr diapasōn, contr. < hē dia pasōn chordōn symphōnia, concord through all of the notes < dia, through + pasōn, gen. pl. of pas, all