Look up: Boron

1. 
   Boron
   Boron is a trivalent metalloid element found in nature only in combination (such as in borax), and used in metallurgy and nucleonics. It has the symbol B.
   Found on http://www.encyclo.co.uk/nol.php
   
   
2. 
   Boron
   Boron is a CDP in Kern County California, USA.
   Found on http://www.encyclo.co.uk/nol.php
   
   
3. 
   boron
   [n] - a trivalent metalloid element
   Found on http://www.webdictionary.co.uk/definitio
   
   
4. 
   Boron
   Boron is a non-metallic element which occurs in several allotropes. It is rarely found in nature, normally occurring as borates or orthoboric acid. Hard yellow crystals or brown amorphous powder. Amorphous boron is the more common allotrope and exists as a dark powder which is unreactive towards water, oxygen, acids and alkalis. Boron finds importa...
   Found on http://www.diracdelta.co.uk/science/sour
   
   
5. 
   boron
   (B) B. Element 5, atomic weight 10.811. Hard yellow crystals or brown amorphous powder, used as a neutron absorber in nuclear chemistry and as a hardener in alloys.
   Found on http://antoine.frostburg.edu/chem/senese
   
   
6. 
   Boron
   CAS Number: 7440-42-8. A metalloid element used in metallurgy and in composite structural materials. Chemical symbol = B. Molecular weight = 10.811 g/mol.
   Found on http://www.chemicalglossary.net/definiti
   
   
7. 
   boron
   a non-metallic element used as an acceptor impurity in silicon Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
8. 
   Boron
   Bo'ron (bō'rŏn) noun [ See Borax .] (Chemistry) 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 na ...
   Found on http://www.encyclo.co.uk/webster/B/82
   
   
9. 
   boron
   <chemistry, element> Fifth element (Z=5) in the periodic table, has 5 protons, potential use as an aneutronic fuel. Also useful as a neutron-absorber. ... Abbreviation: B ... (13 Nov 1997) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
10. 
    boron
    B noun a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
    Found on http://wordnet.princeton.edu/perl/webwn?
    
    
11. 
    Boron
    `Boron` is a chemical element with atomic number 5 and the chemical symbol `B`. Boron is a trivalent nonmetallic element which occurs abundantly in the evaporite ores borax and ulexite. Boron is never found as a free element in nature. Several allotropes of boron exist; amorphous boron is a brown powder, though crystalline boron is black, hard (9.3 on Mohs' scale), and a weak conductor at room temperature. Elemental boron is used as a dopant i...
    Found on http://en.wikipedia.org/wiki/Boron
    
    
12. 
    boron
    (B) (bor´on) a chemical element, atomic number 5, atomic weight 10.811.
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
13. 
    Boron
    • (n.) 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 als...
    Found on http://thinkexist.com/dictionary/meaning
    
    
14. 
    boron
    chemical element, semimetal of main Group IIIa (boron group) of the periodic table, essential to plant growth and of wide industrial application.[13 related articles]
    Found on http://www.britannica.com/eb/a-z/b/95
    
    
15. 
    boron
    A nonmetallic trivalent element, atomic no. 5, atomic wt. 10.811; occurs as a hard crystalline mass or as a brown powder, and forms borates and boric acid. A nutritional need has been reported for pregnant women. [Pers. Burah]
    Found on http://www.stedmans.com/section.cfm/45
    
    
16. 
    boron
    (B) A soft, brown, amorphous or hard crystalline nonmetallic element. Boron is the first element in group IIIA of the periodic table, just above aluminum and next to carbon. Also described as a metalloid element, boron was first isolated by Humphrey Davy and, independently,...
    Found on http://www.daviddarling.info/encyclopedi
    
    
17. 
    boron
    The chemical element commonly used as the dopant in a solar photovoltaic device or cell material. Related category • SEMICONDUCTOR SCIENCE AND TECHNOLOGY
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18. 
    boron
    boron (bōr'on) [New Gr. from borax], chemical element; symbol B; at. no. 5; at. wt. 10.81; m.p. about 2,300°C; sublimation point about 2,550°C; sp. gr. 2.3 at 25°C; valence +3. Boron is a nonmetallic element existing as a dark brown to black amorphous powder or as an extremely ...
    Found on http://www.infoplease.com/ce6/sci/A08083