from The American Heritage® Dictionary of the English Language, 4th Edition
- A trademark used for a welding and incendiary mixture of fine aluminum powder with a metallic oxide, usually iron, that when ignited yields an intense heat.
from The Century Dictionary and Cyclopedia
- n. The trade-name of a mixture of metallic aluminium in a very finely divided condition (so-called ‘aluminium bronze powder'), with the oxid of one or more metals, which on being ignited gives rise to an extremely high temperature as the result of combustion of the aluminium which unites with oxygen abstracted from the oxid used.
Sorry, no etymologies found.