Adjective: supersonic ,soo-pu(r)'só-nik
- (of speed) greater than the speed of sound in a given medium (especially air)
"a supersonic bomber flies so fast that it must release its bombs while the target is still over the horizon"
- Having frequencies above those of audible sound
"Bats use supersonic echolocation to navigate in the dark";
- ultrasonic
See also: inaudible, unhearable
Encyclopedia: Supersonic