The ignition and sustained combustion of a substance without introduction of any ignition source besides thermal energy or heat.
Combustion reaction that ignites without external heating.
1To minimize the danger of spontaneous ignition in storing coal, the piles should be thoroughly ventilated.
2They found that the losses due to disintegration and to spontaneous ignition were of greater importance.
3It is not subject to spontaneous ignition, and for this reason is unlimited in the amount that may be stored in one pile.
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Translations for spontaneous ignition