the science and technology of ultrasound
U.S. National Library of Medicine
A subfield of acoustics dealing in the radio frequency range higher than acoustic SOUND waves (approximately above 20 kilohertz). Ultrasonic radiation is used therapeutically (DIATHERMY and ULTRASONIC THERAPY) to generate HEAT and to selectively destroy tissues. It is also used in diagnostics, for example, ULTRASONOGRAPHY; ECHOENCEPHALOGRAPHY; and ECHOCARDIOGRAPHY, to visually display echoes received from irradiated tissues.
The numerical value of ultrasonics in Chaldean Numerology is: 2
The numerical value of ultrasonics in Pythagorean Numerology is: 7
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"ultrasonics." Definitions.net. STANDS4 LLC, 2018. Web. 17 Feb. 2018. <https://www.definitions.net/definition/ultrasonics>.