lancet fish | n. (Zool.) A large, elongated, scaleless, voracious, deep-sea fish (Alepidosaurus ferox), having long, sharp, lancetlike teeth and a long saillike dorsal fin. [ wns=1 ] Syn. -- lancet fish, wolffish. [ 1913 Webster + WordNet 1.5 ] 2. The doctor, or surgeon fish. [ 1913 Webster ] Variants: lancetfish |