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|Noun||1.||characin fish - any freshwater fish of the family Characinidae|
cypriniform fish - a soft-finned fish of the order Cypriniformes
Characidae, family Characidae - tropical freshwater fishes of Africa and South America and Central America
tetra - brightly colored tropical freshwater fishes
cardinal tetra, Paracheirodon axelrodi - small bright red and blue aquarium fish from streams in Brazil and Colombia