boron
noun/ˈbɔːˌɹɒn/ · South-Asia /bo.rɔn/
Etymology From the stem of borax (boro-) + -on (based on carbon). Coined by British chemist Humphry Davy as a modification of his earlier word boracium.
1
Usually The chemical element (symbol B) with an atomic number of 5, which is a metalloid found in its pure form as a dark amorphous powder.
- The B₆-type octahedral borons are each bonded to five other boron atoms; four are part of the same octahedron, and one is external to this octahedron.1976, Allen M[yron] Alper, editor, Phase Diagrams: Materials Science and Technology (Refractory Materials; 6), New York, N.Y.; London: Academic Press, →ISBN, page 106:
- PIRG noted the European Union has a limit of 300 ppm for boron and that there should be a “full-fledged investigation to determine if limits should be established” in the US.2018 November 20, Wayne Drash, “Consumer group warns of ‘dangerous’ slime products and other hazardous toys”, in CNN:
2
Usually An atom of this element.
- For each X point, four borons in the same plane composing a B₆ cluster provide these orbitals.2001 August 10, J. Akimitsu, K. Takenawa, K. Suzuki, H. Harima, Y. Kuramoto, “High-Temperature Ferromagnetism in CaB₂C₂”, in Science, volume 293, number 5532, →DOI, pages 1125–1127:
- Derived terms
42 terms
aluminium boron oxide, borole, boron-10, boron-11, boron arsenide, boronation, boron carbide, boron chloride, boron deficiency, boron fluoride, boron group, boron hydride, boronic, boronic acid, boron iodide, boronlike, boron nitride, boronolectin, boron orthophosphate, boron oxide, boron phosphate, boron phosphide, boron sulfide, boron sulphide, boron tree, boron tribromide, boron trichloride, boron trifluoride, boron triiodide, boron trioxide, boron triphosphide, borophene, boryl, diboron, eka-boron, ekaboron, ferroboron, nonboron, organoboron, radioboron, tetraboron, triethylboron