ionize \i"on*ize\, v. t. [imp. & p. p. {Ionized}; p. pr. & vb.
n. {Ionizing}.] (Physics, Chemistry)
To convert (an atom or molecule) into ions, e. g. by
dissolving in water, by reaction with acid or alkali, or by
interaction with ionizing radiation. See {ionization}.
[Webster 1913 Suppl. +PJC]