Dictionary
te•tral•o•gy
Pronunciation: (te-tral'u-jē, -trä'lu-), [key]—
n.,
—pl. -gies.
1. a series of four related dramas, operas, novels, etc.
2. 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.