Definition of hammerhead noun from the Oxford Advanced Learner's Dictionary

 

hammerhead

 noun
noun
BrE BrE//ˈhæhed//
 
; NAmE NAmE//ˈhæmərhed//
 
(also hammerhead shark)
 
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a shark with flat parts sticking out from either side of its head with eyes at the ends
See the Oxford Advanced American Dictionary entry: hammerhead