Merriam-Webster Collegiate Dictionary - sonic

 adjective  Date: 1923  1. utilizing, produced by, or relating to sound waves ~ altimeter; broadly of or involving sound ~ 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)  • ~ally adverb