Definition of deionizes:
(v) :
To remove the ionic constituents from (a liquid, e.g. water).
(v) :
(transitive, physical chemistry) To remove the ions from; to deprive of ions.
(v) :
To cause (an ionized substance) to return to a neutral state; to convert (an ion) into a neutral atom or molecule.
(v) :
(intransitive, physical chemistry) To be deprived of ions.
(v) :
Of an ionized substance, to return to a neutral state.