/ Dictionary / Index I ion generator: Meaning and Definition of Find definitions for: i'on gen"erator Pronunciation: [key] a device for creating negatively charged particles in immediately surrounding air, promoted as a cure for various ills. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ion exchange Ionia Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language