Look up: niobium

1. niobium
   [n] - a soft gray ductile metallic element used in alloys
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Niobium
   Niobium is a silver coloured metal which is generally found in conjunction with tantalum, the two elements being separated by fractional crystallisation of their respective fluoro-complexes. As a pure metal, is very reactive and forms an extremely stable oxide when exposed to air which enhances its ...
   Found on http://www.diracdelta.co.uk/science/sour
   
   
3. niobium
   chemical element: atomic number 41 Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
4. Niobium
   Ni·o'bi·um noun [ New Latin , from Latin & English Niobe .] (Chemistry) A later name of columbium. See Columbium .
   Found on http://www.encyclo.co.uk/webster/N/23
   
   
5. niobium
   <chemistry> A later name of columbium. See Columbium. ... Origin: NL, fr. L. & E. Niobe. ... Source: Websters Dictionary ... (01 Mar 1998) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
6. niobium
   Nb noun a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
7. niobium
   (Nb) (ni-o´be-әm) a chemical element, atomic number 1, atomic weight 92.906.
   Found on http://www.encyclo.co.uk/local/21001
   
   
8. Niobium
   • (n.) A later name of columbium. See Columbium. • (n.) A later name of columbium. See Columbium.
   Found on http://thinkexist.com/dictionary/meaning
   
   
9. niobium
   chemical element, refractory metal of Group Vb of the periodic table, used in alloys, tools and dies, and superconductive magnets. Niobium is closely ... [3 related articles]
   Found on http://www.britannica.com/eb/a-z/n/43
   
   
10. niobium
    niobium (nīō'bēum) , metallic chemical element; symbol Nb; at. no. 41; at. wt. 92.9064; m.p. about 2,468°C; b.p. 4,742°C; sp. gr. 8.57 at 20°C; valence +2, +3, +4, or +5. Niobium is a rare, soft, malleable, ductile, gray-white metal with a body-centered cubic crysta...
    Found on http://www.infoplease.com/ce6/sci/A08357
    
    
11. Niobium
    Niobium is a metal element with the symbol Nb.
    Found on http://www.probertencyclopaedia.com/brow
    
    
12. niobium
    (Nb) Type: Term Pronunciation: nī-ō′bē-ŭm Definitions: 1. A rare metallic element, atomic no. 41, atomic wt. 92.90638, usually found with tantalum.
    Found on http://www.medilexicon.com/medicaldictio
    
    
13. niobium
    Soft, grey-white, somewhat ductile and malleable, metallic element, atomic number 41, relative atomic mass 92.906. It occurs in nature with tantalum, which it resembles in chemical properties. It is used in making stainless steel and other alloys for jet engines and rockets and for making superconductor magnets. Niobium was discovered in 1801 b...
    Found on http://www.talktalk.co.uk/reference/ency