n. (Zool.) Any species of marine annelids of the genus Maldane, or family Maldanidae. They have a slender, round body, and make tubes in the sand or mud. [ 1913 Webster ]
n. [ Gr. &unr_; back + &unr_; comely. ] (Zool.) Any one of several species of sharks of the family Notidanidae, or Hexanchidae. Called also cow sharks. See Shark. [ 1913 Webster ]