n. An elongated apodal fish of the family Anguillidæ and genus Anguilla, of which there are several species.n. Any fish of the order Apodes or Symbranchii, of which there are many families and several hundred species.n. Some fish resembling or likened to an eel; an anguilliform fish.n. Some small nematoid or threadworm, as of the family Anguillulidæ, found in vinegar, sour paste, etc. See vinegar-eel, and cut under Nematoidea.n. Hence— A rope's end; a flogging.n. Leptocephalus wilsoni of Australia.n. Congromuræna habenata of New Zealand.