Main Entry: son·ic

Pronunciation: \ˈsä-nik\

Function: adjective

Date: 1923

1 : utilizing, produced by, or relating to sound waves <sonic altimeter>; broadly : of or involving sound <sonic pollution>
2 : having a frequency within the audibility range of the human ear —used of waves and vibrations
3 : of, relating to, or being the speed of sound in air or about 761 miles per hour (1224 kilometers per hour) at sea level at 59°F (15°C)

— son·i·cal·ly \-ni-k(ə-)lē\ adverb