/ Dictionary / Index P pyrotoxin: Meaning and Definition of Find definitions for: py•ro•tox•in Pronunciation: (pī"ru-tok'sin), [key] — n. pyrogen. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pyrotechnist pyrotraumatic dermatitis Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language