Noun | 1. | Cichlidae - cichlids fish family - any of various families of fish order Perciformes, order Percomorphi, Perciformes, Percomorphi - one of the largest natural groups of fishes of both marine and fresh water: true perches; basses; tuna cichlid, cichlid fish - freshwater fishes of tropical America and Africa and Asia similar to American sunfishes; some are food fishes; many small ones are popular in aquariums genus Tilapia, Tilapia - a genus of Cichlidae |