angelfish

noun, plural (especially collectively) an·gel·fish, (especially referring to two or more kinds or species) an·gel·fish·es.

a South American freshwater fish, genus Pterophyllum, often kept in aquariums.Compare scalare.
angel shark.

noun plural -fish or -fishes

any of various small tropical marine percoid fishes of the genus Pomacanthus and related genera, which have a deep flattened brightly coloured body and brushlike teeth: family ChaetodontidaeSee also butterflyfish
Also called: scalare a South American cichlid, Pterophyllum scalare, of the Amazon region, having a compressed body and large dorsal and anal fins: a popular aquarium fish
another name for angel shark

also angel-fish, 1660s, from angel + fish (n.); so called for its “wings.”