/ Dictionary / Index P pyretotherapy: Meaning and Definition of Find definitions for: pyr•e•to•ther•a•py Pronunciation: (pir"i-tō-ther'u-pē, pī"ri-), [key] — n. Med. therapy by raising the body temperature, as by diathermy or by artificially inducing fever. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pyretic Pyrex Related Content Daily Word Quiz: hale Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language