of, relating to, or utilizing ultrasound.

Origin of ultrasonic

First recorded in 1925–30; ultra- + sonic
Related formsul·tra·son·i·cal·ly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for ultrasonic

Historical Examples of ultrasonic

  • Immediately, the ultrasonic paralyzers of the advancing paratimers went into action, and the mercenaries began dropping.

    Temple Trouble

    Henry Beam Piper

  • The Guide aimed quickly and pressed the trigger of the ultrasonic stunner.

    Hunter Patrol

    Henry Beam Piper and John J. McGuire

  • Has an ultrasonic dishwasher underneath, and it does some cooking on top, at the back.

    Space Viking

    Henry Beam Piper

  • From it projected the barrels of two kinds of weapons—explosive and ultrasonic.

British Dictionary definitions for ultrasonic



of, concerned with, or producing waves with the same nature as sound waves but frequencies above audio frequenciesSee also ultrasound
Derived Formsultrasonically, adverb
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

Word Origin and History for ultrasonic

1923, "having frequency beyond the audible range," from ultra- + sonic. For sense, see supersonic.

Online Etymology Dictionary, © 2010 Douglas Harper

ultrasonic in Medicine




Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
Of, relating to, or involving ultrasound.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

ultrasonic in Science



Sound whose frequency is above the upper limit of the range of human hearing (approximately 20 kilohertz).
See ultrasonography.
An image produced by ultrasonography.
Related formsultrasonic adjective (ŭl′trə-sŏnĭk)
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.