Daily Almanac for
Nov 30, 2009
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com•bus•tion



Pronunciation: (kum-bus'chun), [key]
—n.
1. the act or process of burning.
2. Chem.
a. rapid oxidation accompanied by heat and, usually, light.
b. chemical combination attended by production of heat and light.
c. slow oxidation not accompanied by high temperature and light.
3. violent excitement; tumult.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

combustiblecombustion chamber
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