/ Dictionary / Index S steam chest: Meaning and Definition of Find definitions for: steam' chest" Pronunciation: [key] the chamber from which steam enters the cylinder of an engine. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. steam boiler steam coal Related Content Daily Word Quiz: fidelity Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language