Ionise vs. Ionize — What's the Difference?

Standard spelling of ionize

To convert or be converted totally or partially into ions.

Become converted into ions

(physical chemistry) To dissociate atoms or molecules into electrically charged species; to be thus dissociated.

Convert into ions

To dissociate into ions, as by dissolution in water or another polar solvent.

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.

Become converted into ions

Convert into ions