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Definition of Sonic
1. Adjective. (of speed) having or caused by speed approximately equal to that of sound in air at sea level. "A sonic boom"
2. Adjective. Relating to audible sound. "A sonic wave"
Definition of Sonic
1. Adjective. of or relating to sound ¹
2. Adjective. having a speed approaching that of the speed of sound in air ¹
¹ Source: wiktionary.com
Definition of Sonic
1. pertaining to sound [adj]
Medical Definition of Sonic
1. Of, pertaining to, or determined by sound; e.g., sonic vibration. Origin: L. Sonus, sound (05 Mar 2000)