/ Dictionary / Index S spreader beam: Meaning and Definition of Find definitions for: spread'er beam" Pronunciation: [key] a crosspiece for spacing the chains or cables hanging from the boom of a crane. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. spreader spreader-ditcher Related Content Daily Word Quiz: menagerie Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language