Hedgehog

Hedge"hog`

(?), n. 1. (Zol.) A small European insectivore (Erinaceus Europus), 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.
[1913 Webster]

2. (Zol.) The Canadian porcupine.[U.S]
[1913 Webster]

3. (Bot.) A species of Medicago (Medicago intertexta), the pods of which are armed with short spines; -- popularly so called. Loudon.
[1913 Webster]

4. A form of dredging machine. Knight.
[1913 Webster]

5. (Elec.) 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.
[Webster 1913 Suppl.]

6. (Mil.) a defensive obstacle having pointed barbs extending outward, such as one composed of crossed logs with barbed wire wound around them, or a tangle of steel beams embedded in concrete used to impede or damage landing craft on a beach; also, a position well-fortified with such defensive obstacles.
[PJC]

Hedgehog caterpillar (Zol.), the hairy larv of several species of bombycid moths, as of the Isabella moth. It curls up like a hedgehog when disturbed. See Woolly bear, and Isabella moth. -- Hedgehog fish (Zol.), any spinose plectognath fish, esp. of the genus Diodon; the porcupine fish. -- Hedgehog grass (Bot.), a grass with spiny involucres, growing on sandy shores; burgrass (Cenchrus tribuloides). -- Hedgehog rat (Zol.), one of several West Indian rodents, allied to the porcupines, but with ratlike tails, and few quills, or only stiff bristles. The hedgehog rats belong to Capromys, Plagiodon, and allied genera. -- Hedgehog shell (Zol.), any spinose, marine, univalve shell of the genus Murex. -- Hedgehog thistle (Bot.), a plant of the Cactus family, globular in form, and covered with spines (Echinocactus). -- Sea hedgehog. See Diodon.
[1913 Webster]

 

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Mon 24th November 2014