noun, plural te·tral·o·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.
noun plural -gies
- a series of four related works, as in drama or opera
- (in ancient Greece) a group of four dramas, the first three tragic and the last satiric
- pathol a group of four symptoms present in one disorder, esp Fallot’s tetralogy
n.1650s, from Greek tetralogia, from tetra- (see tetra-) + -logia (see -logy). n.
- A complex of four symptoms.