/ Dictionary / Index P pozzolana: Meaning and Definition of Find definitions for: poz•zo•la•na Pronunciation: (pot"su-lä'nuIt.pôt"tsô-lä'nä), [key] — n. a porous variety of volcanic tuff or ash used in making hydraulic cement. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pozsony pozzolanic Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language