/ Dictionary / Index A arming chest: Meaning and Definition of Find definitions for: arm'ing chest" Pronunciation: [key] a chest for holding armor and weapons. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. armillary sphere Arminianism Related Content Daily Word Quiz: modify Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language