D defs.my
Entry 3 senses Webster, 1913

Hammerhead

/(-hĕd`)/ · Ham·mer·head · IPA
01 n. 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 …
  1. 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.) Also: hammer fish, balance fish
  2. 2.
    A fresh-water fish; the stone-roller.(Zool.)
  3. 3.
    An African fruit bat (Hypsignathus monstrosus); -- so called from its large blunt nozzle.(Zool.)