/ Dictionary / Index P Polybus: Meaning and Definition of Find definitions for: Pol•y•bus Pronunciation: (pol'u-bus), [key] — n. Class. Myth. a Corinthian king who was the foster father of Oedipus. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. polybrominated biphenyl polybutadiene Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language