sonic Hear it!

sonic definition

sonic (sän′ik)

adjective

  1. of or having to do with sound
  2. designating or of a speed equal to the speed of sound (about 1,220 km per hour, or 760 mph, through air at sea level at room temperature)

Etymology: < L sonus, sound + -ic

Related Forms:

Webster's New World College Dictionary Copyright © 2005 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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