/ Dictionary / Index P pearlash: Meaning and Definition of Find definitions for: pearl•ash Pronunciation: (pûrl'ash"), [key] — n. commercial potassium carbonate. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pearland pearl barley Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language