Breadcrumb Home > Dictionary > Index P platform bed: Meaning and Definition of Find definitions for: plat'form bed" Pronunciation: [key] a bed, originating in Scandinavia in the 1930s, consisting of a simple shallow box for holding a mattress situated on a slightly recessed pedestal. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. platform platform car ✖ Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language