- (n.) The entire compass of tones.
- (n.) A standard of pitch; a tuning fork; as, the French normal diapason.
- (n.) One of certain stops in the organ, so called because they extend through the scale of the instrument. They are of several kinds, as open diapason, stopped diapason, double diapason, and the like.
- (n.) Concord, as of notes an octave apart; harmony.
- (n.) The octave or interval which includes all the tones of the diatonic scale.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). diapason. Retrieved September 23, 2026, from http://smartdefine.org/diapason/definitions/1997248 |
| Chicago | Webster's. 2011. "diapason" http://smartdefine.org/diapason/definitions/1997248 (accessed September 23, 2026). |
| Harvard | Webster's 2011, diapason, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/diapason/definitions/1997248>. |
| MLA | Webster's. "diapason" 27 May 2011. Web. 23 September 2026. <http://smartdefine.org/diapason/definitions/1997248> |