/ Dictionary / Index P Phineus: Meaning and Definition of Find definitions for: Phin•e•us Pronunciation: (fin'ē-us, fī'nys), [key] — n. Class. Myth. a brother of Cepheus who was not brave enough to rescue his betrothed Andromeda from a sea monster and who was eventually turned to stone. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Phineas phi-phenomenon Related Content Daily Word Quiz: cygnet Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language