/ Dictionary / Index P Pisistratidae: Meaning and Definition of Find definitions for: Pi•sis•trat•i•dae Pronunciation: (pī"su-strat'i-dē", pis"u-), [key] — n.pl. Hippias and Hipparchus, the sons of Pisistratus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pisiform Pisistratus Related Content Daily Word Quiz: candor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language