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Hedgehog grass
(gcide) | Hedgehog \Hedge"hog`\, n.
1. (Zool.) A small European insectivore ({Erinaceus
Europaeus}), 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.
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2. (Zool.) The Canadian porcupine.[U.S]
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3. (Bot.) A species of Medicago (Medicago intertexta),
the pods of which are armed with short spines; --
popularly so called. --Loudon.
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4. A form of dredging machine. --Knight.
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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 (Zool.), the hairy larvae 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 (Zool.), 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 (Zool.), 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 (Zool.), 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.
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