IONIZE
ionize, ionise
(verb) convert into ions
ionize, ionise
(verb) become converted into ions
Source: WordNet® 3.1
Etymology
Verb
ionize (third-person singular simple present ionizes, present participle ionizing, simple past and past participle ionized)
(chemistry, physics) To dissociate atoms or molecules into electrically charged species; to be thus dissociated.
Source: Wiktionary
I"on*ize, v. t. [imp. & p. p. Ionized; p. pr. & vb. n. Ionizing.]
(Elec. Chem.)
Definition: To separate (a compound) into ions, esp. by dissolving in
water. --I`on*i*za"tion (#), n.
Source: Webster’s Unabridged Dictionary 1913 Edition