/ Dictionary / Index P potestas: Meaning and Definition of Find definitions for: po•tes•tas Pronunciation: (pō-tes'täs, -tus), [key] — n. the authority of a paterfamilias over all members of his family and household. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. potentiometric titration potful Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language