son·ic 
/ˈsɑ:nɪk/ adjective
always used before a noun /ˈsɑ:nɪk/ adjective : of or relating to sound, sound waves, or the speed of sound
▪ sonic waves ▪ The concert was a sonic extravaganza. [=a very exciting and entertaining musical event]
▪ sonic waves ▪ The concert was a sonic extravaganza. [=a very exciting and entertaining musical event]
