thermit
/ˈθɜːrmɪt/
noun
- A mixture of metal powders, usually aluminum and iron oxide, that produces intense heat when ignited, used for welding and incendiary devices.
- Thermit reactions can reach temperatures over 4,000 degrees Fahrenheit.
- Soldiers were trained to handle thermit for emergency repairs in the field.
- The railway crew used thermit to weld the broken tracks together.