/ Dictionary / Index I -idine: Meaning and Definition of Find definitions for: -idine Pronunciation: [key] a suffix added to the name of one chemical compound to form the name of another compound derived from or related to the first. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. -idia idio- Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language