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Ultrasonic | Definition of Ultrasonic by Merriam-Webster

Ultrasound, or ultrasonography, works on the principle that sound is reflected at different speeds by tissues or substances of different densities. Ultrasound technology has been used medically since the 1940s..

Ultrasonics | physics | Britannica

Ultrasonics, vibrations of frequencies greater than the upper limit of the audible range for humans—that is, greater than about 20 kilohertz. The term sonic is applied to ultrasound waves of very high amplitudes. Hypersound, sometimes called praetersound or microsound, is sound waves of frequencies greater than 10 13 hertz..

Ultrasonic | Definition of Ultrasonic at Dictionary.com

Ultrasonic definition, of, relating to, or utilizing ultrasound. See more..

Ultrasonic - definition of ultrasonic by The Free Dictionary

Ultrasonic instrumentation instruction in dental hygiene programs in the United States The ultrasonic wave method can be introduced into the elastic constants measurement of the metal material. The Elastic Constants Measurement of Metal Alloy by Using Ultrasonic Nondestructive Method at Different Temperature.

Ultrasound - Wikipedia

Ultrasonic devices are used to detect objects and measure distances. Ultrasound imaging or sonography is often used in medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning, mixing, and accelerating chemical processes..