“Carborundum” is a trademark name for silicon carbide, a hard, synthetic material often used as an abrasive and in various industrial applications. Silicon carbide is valued for its hardness, thermal conductivity, and resistance to chemical and thermal shock. It is commonly used in grinding wheels, cutting tools, and as a semiconductor in some electronic devices. The term is also sometimes used informally to refer to any abrasive material or product of similar properties.
