/ Dictionary / Index P phagedena: Meaning and Definition of Find definitions for: phag•e•de•na Pronunciation: (faj"i-dē'nu), [key] — n. Pathol. a severe, destructive, eroding ulcer. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phage -phagia Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language