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speed demon
speed dial
speed freak
speed garage
speed hump
speed limit
speed merchant
speed of light
speed of sound
speed-read
speed skate
speed skating
speed trap
speed up
speed walking
speed wobbles
speed zone
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speed of sound
speed of sound


noun 
Definition:
 
speed sound travels through medium: the speed at which sound waves travel through a medium. At sea level, under standard conditions of humidity and temperature, the speed of sound is about 1,200 km/hr (760 mph).
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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