Look up: zeolite

1. Zeolite
   A class of minerals that are 'hydrated aluminosilicates'. An aluminosilicate is where some of the Si atoms in silica (which has the perfectly reasonable chemical formula SiO4) are replaced with aluminium, giving an excess negative charge. 'hydrated' means that water is strongly associated with these...
   Found on http://www.kcpc.usyd.edu.au/discovery/gl
   
   
2. zeolite
   [n] - any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium
   Found on http://www.webdictionary.co.uk/definitio
   
   
3. zeolite
   Addition compounds of the type Na₂O·Al₂O₃·n SiO₂·m H₂O, with calcium sometimes replacing or present with the sodium. The sodium in the zeolite exchanges with calcium in water, making zeolites useful for water softening. The porous structure ...
   Found on http://antoine.frostburg.edu/chem/senese
   
   
4. zeolite
   Zeolite is a natural or synthetic hydrated aluminosilicate with an open three-dimensional crystal structure, in which water molecules are held in cavites in the latice. The water can be driven off by heating and the zeolite can then absorb other molecules of suitable size. Zeolites are used for separating mixtures by selective absorption.
   Found on http://www.ktf-split.hr/periodni/en/abc/
   
   
5. Zeolite
   Any one of a family of hydrous aluminum silicate minerals, whose molecules enclose cations of sodium, potassium, calcium, strontium, or barium, or a corresponding synthetic compound, used chiefly as molecular filters and ion-exchange agents.
   Found on http://www.nano.org.uk/nano/glossary.htm
   
   
6. zeolite
   These are crystalline solids (usually containing silicon, aluminium and oxygen) that have a regular, open, porous structure. They are either naturally occurring minerals or synthetically produced, and have applications including as catalysts and molecular sieves
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
7. Zeolite
   Family of hydrated silicates which occur as porous mineral crystals; used for their absorptive properties, as catalysts, separating agents, sequestrants in washing powders, etc
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
8. Zeolite
   Volcanic mineral, sometimes used as a chelating agent
   Found on http://www.researchautism.net/glossary.i
   
   
9. zeolite
   a group of alumino-silicates containing very loosely held water and cations,used in molecular sieves and ion exchangers Category: Chemistry
   Found on http://www.mijnwoordenboek.nl/definition
   
   
10. Zeolite
    Ze'o·lite noun [ Greek ... to boil + -lite : confer French zéolithe .] (Min.) A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included n...
    Found on http://www.encyclo.co.uk/webster/Z/2
    
    
11. zeolite
    <chemical> A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included natrolite, stilbite, analcime, chabazite, thomsonite, heulandite, and others. These species occur of secondary origin in the cavit...
    Found on http://www.mondofacto.com/facts/dictiona
    
    
12. zeolite
    noun any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
    Found on http://wordnetweb.princeton.edu/perl/web
    
    
13. Zeolite
    • (n.) A term now used to designate any one of a family of minerals, hydrous silicates of alumina, with lime, soda, potash, or rarely baryta. Here are included natrolite, stilbite, analcime, chabazite, thomsonite, heulandite, and others. These species occur of secondary origin in the cavities o...
    Found on http://thinkexist.com/dictionary/meaning
    
    
14. zeolite
    any member of a family of hydrated aluminosilicate minerals that contain alkali and alkaline-earth metals. The zeolites are noted for their lability ... [6 related articles]
    Found on http://www.britannica.com/eb/a-z/z/6
    
    
15. Zeolite
    Zeolites are microporous, aluminosilicate minerals commonly used as commercial adsorbents. The term zeolite was originally coined in 1756 by Swedish mineralogist Axel Fredrik Cronstedt, who observed that upon rapidly heating the material stilbite, it produced large amounts of steam from water that ...
    Found on http://en.wikipedia.org/wiki/Zeolite
    
    
16. zeolite
    Any of a group of hydrated aluminosilicate minerals, mostly found in volcanic rocks and hydrothermal veins. Zeolites are variable in form and light, with an open-framework structure which permits their use as 'molecular sieves' and for ion exchange (especially for softening hard water. They undergo ...
    Found on http://www.daviddarling.info/encyclopedi
    
    
17. zeolite
    Type: Term Pronunciation: zē′ō-līt Definitions: 1. A naturally occurring hydrated sodium aluminum silicate, Na₂O·Al₂O₃·(SiO₂)_x·(H₂O)_x, used for softening of hard water by exchanging...
    Found on http://www.medilexicon.com/medicaldictio
    
    
18. zeolite
    Any of the hydrous aluminium silicates, also containing sodium, calcium, barium, strontium, or potassium, chiefly found in igneous rocks and characterized by a ready loss or gain of water. Zeolites are used as `molecular sieves` to separate mixtures because they are capable of selective absorption. They have a high ion-exchange capaci...
    Found on http://www.talktalk.co.uk/reference/ency