Muraena \Mu*r[ae]"na\, n. [L., fr. Gr. ?.] (Zo["o]l.) A genus of large eels of the family {Mir[ae]nid[ae]}. They differ from the common eel in lacking pectoral fins and in having the dorsal and anal fins continuous. The murry ({Mur[ae]na Helen[ae]}) of Southern Europe was the mur[ae]na of the Romans. It is highly valued as a food fish.