Definition of hare noun from the Oxford Advanced American Dictionary

 

hare

 noun
noun
NAmE//hɛr//
 
 
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  • an animal like a large rabbit with very strong back legs, that can run very fast
  • Idioms
    (as) mad as a hatter/a March hare(informal)
     
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    (of a person) mentally ill; very silly From the Mad Hatter, a character in Lewis Carroll's Alice's Adventures in Wonderland. Because of the chemicals used in hat-making, workers often suffered from mercury poisoning, which can cause loss of memory and damage to the nervous system. A March hare was called mad because of the strange behavior of hares during the mating season.