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ultrasonics

[uhl-truh-son-iks] /ˌʌl trəˈsɒn ɪks/
noun, (used with a singular verb)
1.
the branch of science that deals with the effects of sound waves above human perception.
Origin
1930-1935
1930-35; see ultrasonic, -ics
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for ultrasonics

ultrasonics

/ˌʌltrəˈsɒnɪks/
noun
1.
(functioning as sing) the branch of physics concerned with ultrasonic waves Also called supersonics
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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ultrasonics in Medicine

ultrasonics ul·tra·son·ics (ŭl'trə-sŏn'ĭks)
n.

  1. The acoustics of ultrasonic sound.

  2. The science and technology that deals with ultrasound.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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