porcupine

Noun.  Any of several rodents covered with stiff, sharp, erectile, spines or quills (that stand straight up when the animal is attacked or surprised), belonging to one of two taxonomic families: Hystricidae (Old World porcupines) and Erethizontidae (New World porcupines).

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This entry was last updated on RefTopia from its source on 3/20/2012.