1. 
   alumina
   [n] - any of various forms of aluminum oxide occurring naturally as corundum
   Found op http://www.webdictionary.co.uk/definition.php?query=alumina
   
   
2. 
   Alumina
   A·lu'mi·na noun [ Latin alumen , aluminis . See Alum .] (Chemistry) One of the earths, consisting of two parts of aluminium and three of oxygen, Al ₂ O ₃ . » It is the oxide of the metal aluminiu...
   Found op http://www.encyclo.co.uk/webster/A/64
   
   
3. 
   alumina
   <chemistry> One of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3. ... It is the oxide of the metal aluminium, the base of aluminous salts, a constituent of a large part of the earthy siliceous minerals, as the feldspars, micas, scapolites, etc, and the characteris...
   Found op http://www.mondofacto.com/facts/dictionary?alumina
   
   
4. 
   alumina
   aluminum oxide noun any of various forms of aluminum oxide occurring naturally as corundum
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=alumina
   
   
5. 
   alumina
   (ә-loo´mĭ-nә) aluminum oxide. (in pharmaceuticals)aluminum hydroxide.
   Found op http://www.encyclo.co.uk/local/21001
   
   
6. 
   Alumina
   • (n.) One of the earths, consisting of two parts of aluminium and three of oxygen, Al2O3.
   Found op http://thinkexist.com/dictionary/meaning/alumina/
   
   
7. 
   alumina
   synthetically produced aluminum oxide (Al2O3), a white or nearly colourless crystalline substance that is used as a starting material for the ... [22 related articles]
   Found op http://www.britannica.com/eb/a-z/a/54
   
   
8. 
   alumina
   alumina (ulOO'minu) or aluminum oxide,Al2O3, chemical compound with m.p. about 2,000°C and sp. gr. about 4.0. It is insoluble in water and organic liquids and very slightly soluble in strong acids and alkalies. Alumina occurs in two crystalline forms. Alpha alumina is composed of colorless h...
   Found op http://www.infoplease.com/ce6/sci/A0803541.html
   
   
9. 
   Alumina
   Alumina (Al2O3) is the single oxide of the metal aluminium. As found native it is called corundum, when crystallized ruby or sapphire, when amorphous emery. It is next to the diamond in hardness. In combination with silica it is one of the most widely distributed of substances, as it enters in large...
   Found op http://www.probertencyclopaedia.com/browse/HA.HTM
   
   
10. 
    alumina
    Type: Term Pronunciation: ă-lū′mi-nă Synonyms: aluminum oxide
    Found op http://www.medilexicon.com/medicaldictionary.php?t=2539
    
    
11. 
    alumina
    Oxide of aluminium, widely distributed in clays, slates, and shales. It is formed by the decomposition of the feldspars in granite and used as an abrasive. Typically it is a white powder, soluble in most strong acids or caustic alkalis but not in water. Impure alumina is called `emery`. Rubies, sapp...
    Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0009898.html
    
    
12. 
    Alumina
    Oxide of aluminium. Usually produced from bauxite as a first stage in the manufacture of aluminium. About two tons of alumina make one ton of metal. Also a refractory and an abrasive.
    Found op http://www.metalbulletin.com/Glossary.html
    
    
13. 
    alumina
    1) Aluminium oxide 2) Aluminium oxide and occurs as ruby, sapphire, bauxite 3) Aluminum oxide 4) Corundom 5) Corundum
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/alumina/1
    
    

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