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Meaning of boron nitride

bo'ron ni'tride

Pronunciation: [key]
— Chem. Chem.
  1. a white powder, BN, formed by heating boron in nitrogen. In its ordinary form, it has a structure of stacked layers of hexagonal rings, very similar to that of graphite, and is used as a refractory electrical insulator. Cf. Borazon.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.