[ 'zi:əlʌɪt ]
■ noun any of a large group of minerals consisting of hydrated aluminosilicates, used as cation exchangers and molecular sieves.
Derivatives
zeolitic -'lɪtɪk adjective
Origin
C18: from Swed. and Ger. zeolit , from Gk zein 'to boil' + -lite (from their characteristic swelling when heated).