- any of an order (Anguilliformes) of bony fishes with long, slippery, snakelike bodies and no pelvic fins
- any of various other snakelike fishes, including the electric eel and lamprey
Origin of eelMiddle English ele ; from Old English æl, akin to German aal
nounpl. eel or eels
- Any of various long, snakelike, scaleless marine or freshwater fishes of the order Anguilliformes that lack pelvic fins and characteristically migrate from fresh water to salt water to spawn.
- Any of several similar fishes, such as the lamprey and electric eel.
Origin of eelMiddle English ele, from Old English &aemac;l.
(third-person singular simple present eels, present participle eeling, simple past and past participle eeled)