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



BrE BrE//ˈhedʒhɒɡ//
; NAmE NAmE//ˈhedʒhɔːɡ//
, NAmE//ˈhedʒhɑːɡ//
Wild mammals
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a small brown European animal with stiff parts like needles (called spines ) covering its back. Hedgehogs are nocturnal (= active mostly at night) and can roll into a ball to defend themselves when they are attacked. See related entries: Wild mammals Word Originlate Middle English: from hedge (from its habitat) + hog (from its piglike snout).
See the Oxford Advanced American Dictionary entry: hedgehog