ENGL 101 - McKenna - Sp2024- Sound

"Sound, a mechanical disturbance from a state of equilibrium that propagates through an elastic material medium. A purely subjective definition of sound is also possible, as that which is perceived by the ear, but such a definition is not particularly illuminating and is unduly restrictive, for it is useful to speak of sounds that cannot be heard by the human ear, such as those that are produced by dog whistles or by sonar equipment."

"Sound." Britannica Academic, Encyclopædia Britannica, 7 Sep. 2023. academic-eb-com.ezproxy.ccs.spokane.edu/levels/collegiate/article/sound/109557. Accessed 11 Mar. 2024.