Supersonic vs. Ultrasonic

Having, caused by, or relating to a speed greater than the speed of sound in a given medium, especially air.

Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.

Of or relating to sound waves with a frequency above the range audible to the human ear; ultrasonic.

Of, relating to, or involving ultrasound.

(of a speed) Greater than the speed of sound (in the same medium, and at the same temperature and pressure).

(acoustics) Beyond (higher in frequency than) the range of sound perceptible to the human ear; with a frequency of 20 kilohertz or higher.

Ultrasonic, having a frequency too high to be audible.

Having frequencies above those of audible sound

An aircraft that can travel at the speed of sound.

Moving at a speed greater than the speed of sound in air; - this speed varies with altitude, since the speed of sound varies with altitude, as well as with temperature and humidity, being approximately 1129 feet per second at sea level and 984 feet per second at 16 miles altitude.

Capable of moving at speeds higher than the speed of sound; - of aircraft.

(of speed) greater than the speed of sound in a given medium (especially air);

Having frequencies above those of audible sound