demineralize water.    From Wordnet, Princeton University. 

We require an installation to demineralize an appropriate quantity of ocean-water.    From Wordnik.com.  [The Languages of Pao]

Acids, like those produced by bacteria or Coca-Cola, demineralize the enamel of the teeth.    From Wordnik.com.  [Tooth Regeneration May Replace Drill-and-Fill « Isegoria] Reference

By comparison, if one were to demineralize a typical well-permineralized fossil, there would be nothing left.    From Wordnik.com.  [300 secular students visit Ken Ham's Creation “Museum” - The Panda's Thumb] Reference

What the filtering systems at these treatment facilities are basically designed to do is demineralize your water.    From Wordnik.com.  [EzineArticles] Reference

Then, the hydroxylapatite crystals of enamel demineralize, allowing for greater bacterial invasion deeper into the tooth.    From Wordnik.com.  [Top Stories - Google News] Reference

+ ions that demineralize the enamel beneath the surface of the tooth; calcium and phosphate are dissolved in the process.    From Wordnik.com.  [Naturejobs - All Jobs] Reference