/ Dictionary / Index P Polonius: Meaning and Definition of Find definitions for: Po•lo•ni•us Pronunciation: (pu-lō'nē-us), [key] — n. the sententious father of Ophelia in Shakespeare's Hamlet. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polonium Polonize Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language