I. ˈsänik, -nēk adjective
Etymology: son- + -ic
1. : having a frequency within the audibility range of the human ear — used of waves and vibrations; compare infrasonic , supersonic
2. : utilizing, produced by, or relating to sound waves
sonic altimeter
3. : of, indicating, or relating to the speed of sound in air : having a speed in air of about 1087 feet per second or about 741 miles per hour at sea level — compare hypersonic , subsonic , supersonic , transonic
4. : capable of uttering sounds
• son·i·cal·ly -nə̇k(ə)lē, -nēk-, -li adverb
II. adjective
: of or involving sound and especially music