/ Dictionary / Index S scumboard: Meaning and Definition of Find definitions for: scum•board Pronunciation: (skum'bôrd", -bōrd"), [key] — n. a board or strip of material partly immersed in flowing water to hold back scum. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. scumble scummy Related Content Daily Word Quiz: acquiesce Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language