'silicon carbide' definitions:

Definition of 'silicon carbide'

(from WordNet)
noun
An extremely hard blue-black crystalline compound (SiC) used as an abrasive and a heat refractory material; crystals of silicon carbide can be used as semiconductors

Definition of 'silicon carbide'

From: GCIDE
  • Carborundum \Car`bo*run"dum\ (k[aum]r`b[-o]*r[u^]n"d[u^]m), [a trade name, from Carbon + corundum.] A beautiful crystalline compound, silicon carbide (SiC), consisting of carbon and silicon in combination; -- also called 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. [Webster 1913 Suppl.] carborundum cloth