/ Dictionary / Index V volcanic ash: Meaning and Definition of Find definitions for: volcan'ic ash' Pronunciation: [key] — Geol. Geol. ash (def. 2). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. volcanic volcanic bomb Related Content Daily Word Quiz: placid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language