/ Dictionary / Index B bouldering: Meaning and Definition of Find definitions for: boul•der•ing Pronunciation: (bōl'dur-ing), [key] — n. pavement made with small boulders. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Boulder Dam boulder raspberry Related Content Daily Word Quiz: hedonist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language