An "eel" is a long and slimy fish that can be found in both fresh and saltwater. It looks like a snake and has a slippery body, making it a good swimmer. Full definition
Today we have big Nassau and black groupers, big hog fish snappers, nurse sharks and a couple of moray eels living in and around the wreck. (ambergriscaye.com)
This hodge - podge of dental torture, putative madness, and a very clumsy use of eels as metaphor wears out its welcome well before the final credits roll, skittering at the end, and pell - mell at that, towards an ending that is painfully obvious and even more painfully trite. (killermoviereviews.com)
Electric eels use electric current to navigate, communicate and hunt for small prey. (sciencenews.org)