Hammerhead /(-hĕd`)/

Ham·mer·head

Hammerhead

n.
  1. A shark of the genus Sphyrna or Zygaena, having the eyes set on projections from the sides of the head, which gives it a hammer shape. The Sphyrna zygaena is found in the North Atlantic. Called also hammer fish, and balance fish. (Zool.)
  2. A fresh-water fish; the stone-roller. (Zool.)
  3. An African fruit bat (Hypsignathus monstrosus); -- so called from its large blunt nozzle. (Zool.)