/ Dictionary / Index E eel: Meaning and Definition of Find definitions for: eel Pronunciation: (ēl), [key] — pl. eel, eels. any of numerous elongated, snakelike marine or freshwater fishes of the order Apodes, having no ventral fins. any of several similar but unrelated fishes, as the lamprey. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: eel (Thesaurus) EEG eelblenny Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language