noun (n)

• relatively large rodents with sharp erectile bristles mingled with the fur(noun.animal)

  Synonym:
  hedgehog
  

  source: wordnet30
• Any Old Word rodent of the genus Hystrix, having the back covered with long, sharp, erectile spines or quills, sometimes a foot long. The common species of Europe and Asia (Hystrix cristata) is the best known.(noun)

  source: webster1913