/ Dictionary / Index P phytotoxic: Meaning and Definition of Find definitions for: phy•to•tox•ic Pronunciation: (fī"tu-tok'sik), [key] — adj. of or pertaining to phytotoxin. inhibitory to the growth of or poisonous to plants. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. phytosuccivorous phytotoxin Related Content Daily Word Quiz: rustic Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language