Sea eel refers to any type of eel that lives in the sea or ocean. It is a general term used to describe various species of eels found in marine environments. Eels are long, snake-like fish with elongated bodies and no pelvic fins. They typically have slimy skin and can vary in coloration depending on the species. Some examples of sea eels include the Moray eel and the Conger eel.
Note: The provided meaning of the answer is for the latest New York Times crossword puzzle clue: Marine creature whose name has four consecutive vowels. Explanations are generated by AI and may be inaccurate.