from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Ignition of a substance, such as oily rags or hay, caused by a localized heat-increasing reaction between the oxidant and the fuel and not involving addition of heat from an outside source.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
Combustionwithout an external sourceof heat.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun ignition of a substance (as oily rags) resulting from an internal oxidation process
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