Go to MSN Homeencarta®
Dictionary
Find
in
Dictionary
Thesaurus
Translations
ABCDEFGHIJKLMNOPQRSTUVWXYZ
Click to move up the list of words
Songhai (1)
Songhai (2)
songsmith
songster
songstress
songwriter
sonic
sonic barrier
sonic boom
sonics
sonnet
sonnet sequence
sonneteer
sonny
sonobuoy
sonogram
Sonoma
Click to move down the list of words
Also available:

World English Dictionary
Dictionnaire Français

sonic boom
son·ic boom (plural son·ic booms)


noun 
Definition:
 
loud boom from shock waves: a noise heard as a loud boom at ground level resulting from the shock waves created by an aircraft flying above the speed of sound
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
Advertisement
© 2009 Microsoft