/ Dictionary / Index T tetralogy: Meaning and Definition of Find definitions for: te•tral•o•gy Pronunciation: (te-tral'u-jē, -trä'lu-), [key] — pl. -gies. a series of four related dramas, operas, novels, etc. a group of four dramas, three tragedies and one satyr play, performed consecutively at the festival of Dionysus in ancient Athens. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: tetralogy (Thesaurus) tetralite tetralogy of Fallot Related Content Daily Word Quiz: sylvan Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language