(n): a person who is not very bright
(n): the striking part of a hammer
(n): the striking part of a tool
(n): medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous
(n): any of numerous elongate mostly marine carnivorous fishes with heterocercal caudal fins and tough skin covered with small toothlike scales
