/ Dictionary / Index P Pitri: Meaning and Definition of Find definitions for: Pi•tri Pronunciation: (pi'trē), [key] — pl. -tris, -tri. the legendary progenitor of any family. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Pitot tube pit sample 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