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Definition of Hedgehog
1. Noun. Relatively large rodents with sharp erectile bristles mingled with the fur.
Terms within: Quill
Generic synonyms: Gnawer, Rodent
Specialized synonyms: Old World Porcupine, New World Porcupine
2. Noun. Small nocturnal Old World mammal covered with both hair and protective spines.
Generic synonyms: Insectivore
Group relationships: Erinaceus, Genus Erinaceus
Terms within: Quill
Definition of Hedgehog
1. n. A small European insectivore (Erinaceus Europæus), and other allied species of Asia and Africa, having the hair on the upper part of its body mixed with prickles or spines. It is able to roll itself into a ball so as to present the spines outwardly in every direction. It is nocturnal in its habits, feeding chiefly upon insects.
2. n. A variety of transformer with open magnetic circuit, the ends of the iron wire core being turned outward and presenting a bristling appearance, whence the name.
Definition of Hedgehog
1. Noun. Small mammal characterized by its spiny back and by its habit of rolling itself into a ball when attacked. ¹
2. Noun. A type of moveable military barricade made from crossed logs or steel bars, laced with barbed wire, used to damage or impede tanks and vehicles; Czech hedgehog. ¹
3. Noun. The nickname for a type of depth charge weapon that simultaneously fires a number of explosives into the water to create a pattern of underwater explosions intended to attack submerged enemies. ¹
4. Noun. (Australia) A type of chocolate cake (or slice), somewhat similar to an American brownie. ¹
¹ Source: wiktionary.com
Definition of Hedgehog
1. a small mammal [n -S]
Medical Definition of Hedgehog
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