a black, crystalline, extremely hard, water-insoluble solid, B 4 C, used chiefly as a moderator in nuclear reactors, as an abrasive, and as a refractory.
a black extremely hard inert substance having a high capture cross section for thermal neutrons. It is used as an abrasive and refractory and in control rods in nuclear reactors. Formula: B4C
boron neutron capture therapy
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 […]
boric oxide. a colorless crystalline compound, B 2 O 3 , used in metallurgy and chemical analysis.
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