Chem.
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 .
Chem.
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 Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012