One entry found for supersonic.

Main Entry: su·per·son·ic
Pronunciation: sü-pr-sän-ik
Function: adjective
1 : ULTRASONIC
2 : of, being, or relating to speeds from one to five times the speed of sound in air
3 : moving, capable of moving, or using air currents moving at supersonic speed <a supersonic airplane>
- su·per·son·i·cal·ly /-i-k(-)l/ adverb

Pronunciation Symbols