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Meaning of supersonic

su•per•son•ic

Pronunciation: (s"pur-son'ik), [key]
— adj.
  1. greater than the speed of sound waves through air.
  2. capable of achieving such speed: a supersonic plane.
  3. ultrasonic.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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