carborundum
n. தோகைக்கல், கரிக்கன்மகை.
Car`bo*run"dum, [Carbon + corundum.] Defn: 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.