Dicionário

Carborundum

Webster's Dictionary 1913

Car′bo‐run″dum (?), [Carbon + corundum.] A beautiful crystalline compound, SiC, consisting of carbon and silicon in combination; carbon silicide. It is made by heating carbon and sand together in an electric furnace. The commercial article is dark-colored and iridescent. It is harder than emery, and is used as an abrasive.