An elongated fish of many genera and species. The common eels of Europe and America belong to the genus Anguilla. The electrical eel is a species of Gymnotus. The so called vinegar eel is a minute nematode worm. See Conger eel, Electric eel, and Gymnotus.

der Aal Anguilla anguilla

a long, snakelike fish.

Any of various snakelike fish, with slender body and poorly developed fins, esp. one of the genus Anguilla living in fresh water and breeding in the sea.

the fatty flesh of eel; an elongate fish found in fresh water in Europe and America; large eels are usually smoked or pickled

voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins

long, snakelike fishes that live in major oceans, freshwater lakes, and rivers. Eels belong to about 20 different families, most of which are relatively unknown. They live in tropical seas or deep in the ocean. Freshwater eels are members of the family Anguillidae. They live in the waters of almost every continent. Commonly known saltwater species are the conger eels, members of the family Congridae, and the moray eels that belong to the family Muraenidae.

True eels (Anguilliformes) are an order of fish, which consists of 4 suborders, 19 families, 110 genera and 400 species. Most eels are predators.