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
Small mammal characterized by its spiny back and by its habit of rolling itself into a ball when attacked
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
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
A hedgehog is a small brown animal with sharp spikes covering its back. Any of 14 species of insectivores in the family Erinaceidae. They eat primarily insects and other arthropods but will also eat plant material. The nine species of spiny hedgehogs have short, barbless spines on the back, a round body, small head, pointed face, and little or no tail. Species range from 4 to 17 in. (10 to 44 cm) long. Spiny hedgehogs are native to Great Britain, northern Africa, and Asia; one species was introduced into New Zealand. The five species of gymnure, or hairy hedgehog, are Asian. They have coarse guard hairs but no spines and are extremely malodorous. The common gymnure may be 18 in. (46 cm) long and have a 12-in. (30-cm) tail. See also porcupine
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