boron nitride
Chemistry
noun
The nitride of boron, BN, a solid compound made synthetically and noted for its hardness and stability.
- Boron nitride occurs in several different crystalline forms and as an amorphous powder. Its uses include abrasives, lubricants, cosmetics, and semiconductor devices. The various forms of boron nitride are analogous to the structures of carbon, with which it is isoelectronic..
Origin
Mid 19th century.
- circinate
- Circinus
- circle
- circle change
- circle dance
- circlet
- circle the wagons
- circle work
- circlip
- circs
- circuit
- circuit board
- circuit breaker
- circuitous
- circuitously
- circuitousness
- circuit rider
- circuitry
- circular
- circular breathing
- circular firing squad
- circularise
- circularity
- circularization
- circularize