Skip to Content
Medical Term:


Pronunciation: ze'o-lit


A naturally occurring hydrated sodium aluminum silicate, Na2O·Al2O3·(SiO2)x·(H2O)x, used for softening of hard water by exchanging its Na+ for the Ca2+ of the water; thus zeolite is an ion exchanger. Some synthetic ion exchangers are termed synthetic zeolites, although no chemical relationship exists.

© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.