/ Dictionary / Index P porphyrization: Meaning and Definition of Find definitions for: por•phy•ri•za•tion Pronunciation: (pôr"fu-ru-zā'shun), [key] — n. reduction to a powder, formerly done on a slab of porphyry. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. porphyritic porphyrize Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language