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Boron   /bˈɔrˌɑn/   Listen
noun
Boron  n.  (Chem.) A nonmetallic element occurring abundantly in borax. It is reduced with difficulty to the free state, when it can be obtained in several different forms; viz., as a substance of a deep olive color, in a semimetallic form, and in colorless quadratic crystals similar to the diamond in hardness and other properties. It occurs in nature also in boracite, datolite, tourmaline, and some other minerals. Atomic number 5. Atomic weight 10.81. Symbol B.






Collaborative International Dictionary of English 0.48








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"Boron" Quotes from Famous Books



... properties of an element and its atomic weight. Lithium, at the beginning of the first group, is a very strong base-forming element, with pronounced metallic properties. Beryllium, following lithium, is less strongly base-forming, while boron has some base-forming and some acid-forming properties. In carbon all base-forming properties have disappeared, and the acid-forming properties are more marked than in boron. These become still more emphasized as we pass through nitrogen and oxygen, ...
— An Elementary Study of Chemistry • William McPherson

... attributed by Dr Liebreich to other causes, and that all persons declared themselves to be in better physical condition after seven months than they had been before. On the whole the balance of evidence seems to be that while no acute injury is likely to result from boron compounds in food, they are liable to produce ...
— Project Gutenberg Encyclopedia

... still unfinished, Chretien de Troyes died. It was continued by other poets, and through this romance the quest of the holy graal became a portion of the Arthurian cycle. A Perceval by ROBERT DE BORON, who wrote in the early part of the thirteenth century, has been lost; but a prose redaction of the romance exists, which closes with the death of King Arthur. The great Lancelot in prose—a vast compilation—(about 1220) reduces the various adventures of its hero and ...
— A History of French Literature - Short Histories of the Literatures of the World: II. • Edward Dowden

... teeth weren't mere calcium phosphate, like other beasts. An amateur chemist found out that they were an organically deposited boron carbide, which is harder than any other substance but crystallized carbon—diamond. In fact, diny teeth, being organic, seemed to be an especially hard form of boron carbide. Dinies could chew iron. They could masticate steel. They could grind up and swallow anything but tool-steel reinforced ...
— Attention Saint Patrick • William Fitzgerald Jenkins

... Rowland adds: "The substances under the head of 'Not in the Solar Spectrum' are often placed there because the elements have few strong lines or none at all in the limit of the solar spectrum when the arc spectrum, which I have used, is employed. Thus, boron has only two strong lines at 2497. Again, the lines of bismuth are all compound, and so too diffuse to appear in the solar spectrum. Indeed, some good reason generally appears for their absence from the solar spectrum. Of course, there is ...
— Scientific American Supplement, No. 799, April 25, 1891 • Various



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