/ Dictionary / Index B bone ash: Meaning and Definition of Find definitions for: bone' ash" Pronunciation: [key] a white ash obtained by calcining bones, used as a fertilizer and in the making of bone china. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. bone boneblack Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language