zeolite

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ze·o·lite

(zē′ə-līt′)

Any one of a family of hydrous alkali-aluminum silicate minerals, whose crystal lattice may enclose or sequester cations of sodium, potassium, magnesium, calcium, strontium, or barium, or a corresponding synthetic compound, used chiefly as molecular filters and ion-exchange agents.

[Swedish zeolit, from Greek zein, to boil (from its swelling and boiling under the blowpipe); see yes- in Indo-European roots.]

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

zeolite

(ˈziːəˌlaɪt)

1. (Minerals) any of a large group of glassy secondary minerals consisting of hydrated aluminium silicates of calcium, sodium, or potassium: formed in cavities in lava flows and plutonic rocks

2. (Chemistry) any of a class of similar synthetic materials used in ion exchange and as selective absorbents. See molecular sieve

[c18: zeo-, from Greek zein to boil + -lite; from the swelling up that occurs under the blowpipe]

zeolitic adj

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

ze•o•lite

(ˈzi əˌlaɪt)

n.

any of a group of hydrated aluminosilicate minerals, used as molecular sieves.

[1770–80; < Greek ze(în) to boil + -o- + -lite]

ze`o•lit′ic (-ˈlɪt ɪk) adj.

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Noun

zeolite - 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

mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition

water softener - a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power

chabasite, chabazite - a group of minerals of the zeolite family consisting of a hydrous silicate of calcium and aluminum

heulandite - a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium

natrolite - a group of minerals of the zeolite family consisting of a hydrous silicate of sodium and aluminum

phillipsite - a group of white or reddish crystalline minerals of the zeolite family consisting of a hydrous silicate of calcium and potassium and aluminum

Translations

zéolithe

References in periodicals archive ?

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Zeolites are defined as a mineral group characterized by a three-dimensional linked tetrahedral framework, each composed of four oxygen atoms surrounding a cation, conferring particular characteristics (COOMBS et al., 1997).