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Noun: hammerhead  'ha-mur,hed
  1. A stupid person; used to express a low opinion of someone's intelligence
    - dunce, dunderhead, numskull, blockhead, bonehead, lunkhead [N. Amer], knucklehead, loggerhead [archaic], muttonhead, dumbass [N. Amer], chowderhead [N. Amer], lamebrain, pea brain, numbskull, bubblehead, twonk [Brit], lunk [N. Amer]
     
  2. The striking part of a hammer
     
  3. Medium-sized live-bearing shark with eyes at either end of a flattened hammer-shaped head; worldwide in warm waters; can be dangerous
    - hammerhead shark

Derived forms: hammerheads

Type of: dolt, dullard, head, poor fish, pudden-head [US], pudding head, shark, stupe, stupid, stupid person

Part of: genus Sphyrna, hammer, Sphyrna

Encyclopedia: Hammerhead, Hoof and Mouth