/ Dictionary / Index P phellogen: Meaning and Definition of Find definitions for: phel•lo•gen Pronunciation: (fel'u-jun), [key] — n. Bot. cork cambium, a layer of tissue or secondary meristem external to the true cambium, giving rise to cork tissue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phellem phelonion Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language