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[son-ik] /ˈsɒn ɪk/
of or pertaining to sound.
noting or pertaining to a speed equal to that of sound in air at the same height above sea level.
1920-25; < Latin son(us) sound1 + -ic
Related forms
multisonic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for sonic
  • The small space rock disintegrated high in the atmosphere, creating a sonic boom heard by numerous witnesses.
  • There is no sonic boom in a vacuum and no worry about animals or other vehicles.
  • Two explosions of the sun hyper sonic and super sonic.
  • The result is something called thermoacoustic or sonic refrigeration.
  • Sound advice for selecting sonic stocking stuffers.
  • Edge and myself were tuned into dramatic sonic landscapes.
  • sonic booms were reported in communities along the flight path as the plane completed its race across the continent.
  • Car alarms are part of the sonic wallpaper of any city.
  • The sonic screwdriver is mentioned frequently in licensed spinoff media.
British Dictionary definitions for sonic


of, involving, or producing sound
having a speed about equal to that of sound in air: 331 metres per second (741 miles per hour) at 0°C
Word Origin
C20: from Latin sonus sound
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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Word Origin and History for sonic

1923, from Latin sonus "sound" (see sound (n.1)) + -ic. Sonic boom is attested from 1952.

Online Etymology Dictionary, © 2010 Douglas Harper
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sonic in Medicine

sonic son·ic (sŏn'ĭk)
Of, relating to, or determined by audible sound.

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