- Rhymes: -ɒnɪk
supersonic (not comparable)
- (of a speed) greater than the speed of sound (in the same medium, and at the same temperature and pressure)
- (colloquial, of a sound) ultrasonic, having a frequency too high to be audible
greater than the speed of sound
ultrasonic — see ultrasonic
supersonic (plural supersonics)
- An aircraft that can travel at the speed of sound.