/ Dictionary / Index S steam organ: Meaning and Definition of Find definitions for: steam' or"gan Pronunciation: [key] calliope (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. steam locomotive steampipe Related Content Daily Word Quiz: supercilious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language