/ Dictionary / Index M molding board: Meaning and Definition of Find definitions for: mold'ing board" Pronunciation: [key] a board upon which bread is kneaded, cookies prepared, etc. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. molding molding plane Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language