noun (used with a singular verb)
the branch of science that deals with the effects of sound waves above human perception.
Origin of ultrasonics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for ultrasonics
Historical Examples of ultrasonics
Ultrasonics were nice, effective, humane police weapons, but they were unreliable.Temple Trouble
Henry Beam Piper
(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
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.