/ Dictionary / Index P phenanthrenequinone: Meaning and Definition of Find definitions for: phe•nan•threne•qui•none Pronunciation: (fu-nan"thrēn-kwu-nōn', -kwin'ōn), [key] — n. Chem. a yellowish-orange, crystalline, water-insoluble solid, CHO, used chiefly in organic synthesis and the manufacture of dyes. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phenanthrene phenarsazine chloride Related Content Daily Word Quiz: torrid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language