deionized

From de- + ionized.

deionized (comparative more deionized, superlative most deionized)

1. That has been prepared by deionization.
   • 2003, Dan Brown, The Da Vinci Code, Doubleday, →ISBN, pages 25–26:

     He could taste the familiar tang of museum air—an arid, deionized essence that carried a faint hint of carbon—the product of industrial, coal-filter dehumidifiers that ran around the clock to counteract the corrosive carbon dioxide exhaled by visitors.

   • 2024 October 10, Tiana Milović et al., “Enhancing Compressive Strength of Cement by Indigenous Individual and Co-Culture Bacillus Bacteria”, in Materials‎^[1], volume 17, number 20, →DOI, archived from the original on 24 February 2025:

     Cement pastes, with a water-to-cement ratio of 0.5, were prepared by (i) adding ordinary Portland cement (CEM I) to deionized water (control samples) or (ii) mixing CEM I with a lyophilized bacterial agent and then putting those dry ingredients into deionized water (bacteria samples).

deionized

1. simple past and past participle of deionize