/ Dictionary / Index P pyr-: Meaning and Definition of Find definitions for: pyr- Pronunciation: [key] var. ofused before h or a vowel: pyran. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pyoureter pyracantha Related Content Daily Word Quiz: deleterious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language