[ zee-uh-lahyt ]
/ ˈzi əˌlaɪt /

noun Mineralogy.

any of a group of hydrated silicates of aluminum with alkali metals, commonly occurring as secondary minerals in cavities in basic volcanic rocks: used for their molecular sieve properties because they undergo dehydration with little or no change in crystal structure.

Origin of zeolite

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


ze·o·lit·ic [zee-uh-lit-ik] /ˌzi əˈlɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for zeolite

British Dictionary definitions for zeolite

/ (ˈziːəˌlaɪt) /


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
any of a class of similar synthetic materials used in ion exchange and as selective absorbentsSee molecular sieve

Derived forms of zeolite

zeolitic (ˌziːəˈlɪtɪk), adjective

Word Origin for zeolite

c18: zeo-, from Greek zein to boil + -lite; from the swelling up that occurs under the blowpipe
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for zeolite

[ zēə-līt′ ]

Any of a family of hydrous aluminum silicate minerals, whose molecules enclose cations of sodium, potassium, calcium, strontium, or barium. Zeolites are usually white or colorless, but they can also be red or yellow. They are characterized by their easy and reversible loss of water of hydration. They usually occur within cavities in basalt.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.