[ uhl-truh-son-iks ]
/ ˌʌl trəˈsɒn ɪks /

noun (used with a singular verb)

the branch of science that deals with the effects of sound waves above human perception.

Origin of ultrasonics

First recorded in 1930–35; see origin at ultrasonic, -ics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ultrasonics

  • Ultrasonics were nice, effective, humane police weapons, but they were unreliable.

    Temple Trouble|Henry Beam Piper

British Dictionary definitions for ultrasonics


/ (ˌʌltrəˈsɒnɪks) /


(functioning as singular) the branch of physics concerned with ultrasonic wavesAlso 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

Medicine definitions for ultrasonics


[ ŭl′trə-sŏnĭks ]


The acoustics of ultrasonic sound.
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.