thermite

[ thur-mahyt ]
/ ˈθɜr maɪt /
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noun

a mixture of finely-divided metallic aluminum and ferric oxide that when ignited produces extremely high temperatures as the result of the union of the aluminum with the oxygen of the oxide: used in welding, incendiary bombs, etc.

Origin of thermite

First recorded in 1895–1900; therm- + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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