
Thermite is a pyrotechnic composition of metal powder, fuel and metal oxide. When ignited by heat, thermite undergoes an exothermic oxidation-reduction reaction. Most varieties are not explosive but can create brief bursts of high temperature in a small area. Its form of action is similar to that of other fuel-oxidizer mixtures, such as black powd...
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http://en.wikipedia.org/wiki/Thermite

Thermite is a mixture of aluminium and iron oxide or some other metal oxide which on combustion produces a very high temperature, around 3000 degrees Celsius. It is used as a filling for incendiary bombs.
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thermite, thermit A mixture of finely divided aluminum and oxide of iron or other metal, that produces on combustion (when ignited) a very high temperature (about 3,000°C); used in thermite processing, welding, and incendiary bombs.
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http://www.wordinfo.info/words/index/info/view_unit/4265/18
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