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sonically

Variant of sonic

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)

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Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.

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