Boron-nitride
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.
noun
a white inert crystalline solid existing both in a graphite-like form and in an extremely hard diamond-like form (borazon). It is used as a refractory, high temperature lubricant and insulator, and heat shield. Formula: BN
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- Boron-oxide
boric oxide. a colorless crystalline compound, B 2 O 3 , used in metallurgy and chemical analysis.
- Boronia
noun any aromatic rutaceous shrub of the Australian genus Boronia Historical Examples Captivity M. Leonora Eyles Peeps At Many Lands: Australia Frank Fox Australian Pictures Howard Willoughby Journal of an Overland Expedition in Australia Ludwig Leichhardt
- Borosilicate
a salt of boric and silicic acids. noun a salt of boric and silicic acids
- Borosilicate-glass
a glass containing 5 percent or more of B 2 O 3 , highly resistant to heat and shock, used especially in making cookware and chemical glassware. noun any of a range of heat- and chemical-resistant glasses, such as Pyrex, prepared by fusing together boron(III) oxide, silicon dioxide, and, usually, a metal oxide
- Borosilicic-acid
any of several hypothetical acids that form borosilicates.