|—n , pl -gies|
|1.||a series of four related works, as in drama or opera|
|2.||(in ancient Greece) a group of four dramas, the first three tragic and the last satiric|
|3.||pathol a group of four symptoms present in one disorder, esp Fallot's tetralogy|
|[C17: from Greek tetralogia; see |
tetralogy te·tral·o·gy (tě-trāl'ə-jē, -trŏl'-)
A complex of four symptoms.