Ultrasound (disambiguation)

Ultrasound is sound with a frequency greater than the upper limit of human hearing (greater than 20 kHz).

Ultrasonic is an adjective referring to ultrasound.

Ultrasound and ultrasonic may also refer to:

• Medical ultrasonography, an ultrasound-based diagnostic imaging technique
• Ultrasonics, shorthand term for any equipment employing ultrasonic principles, also used as a trade term for the use of high-intensity acoustic energy to change materials
• Ultrasonic sensors and transducers which use ultrasound to measure distance and velocity
• Ultrasonic testing, a technique of non-destructive testing
• Ultrasonic cleaning