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Dictionary

su•per•son•ic

Pronunciation: (sOO"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.

super-smooth

supersonics

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