- (n.) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.
- (n.) A motion to and fro, up and down or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibration.
- (n.) The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin.
- (n.) A wavy appearance or outline; waviness.
- (n.) The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water or of air; the undulations of sound.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). undulation. Retrieved September 20, 2026, from http://smartdefine.org/undulation/definitions/2076912 |
| Chicago | Webster's. 2011. "undulation" http://smartdefine.org/undulation/definitions/2076912 (accessed September 20, 2026). |
| Harvard | Webster's 2011, undulation, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/undulation/definitions/2076912>. |
| MLA | Webster's. "undulation" 28 May 2011. Web. 20 September 2026. <http://smartdefine.org/undulation/definitions/2076912> |