English Dictionary

hedgehog

/ˈhɛd͡ʒ.hɒɡ/

noun

A small mammal, of the family Erinaceidae or subfamily Erinaceinae (spiny hedgehogs, the latter characterized by their spiny back and often by the habit of rolling up into a ball when attacked.)

I saw a hedgehog in the garden.

意味（1）

A small mammal, of the family Erinaceidae or subfamily Erinaceinae (spiny hedgehogs, the latter characterized by their spiny back and often by the habit of rolling up into a ball when attacked.)

[L]ike Hedg-hogs vvhich / Lye tumbling in my bare-foote vvay, and mount / Their pricks at my foot-fall: ſometime am I / All vvound vvith Adders, vvho vvith clouen tongues / Doe hiſſe me into madneſſe: […]

意味（2）

(US) Any of several spiny mammals, such as the porcupine, that are similar to the hedgehog.

意味（3）

(military) Ellipsis of Czech hedgehog: an antitank obstacle constructed from three steel rails.

Ukrainian civilians have been DIY-ing hedgehogs, welding two bars or beams at an angle to make a cross and then adding a third to ensure it holds its shape even if it's knocked over.

意味（4）

(informal, military, historical) A spigot mortar-type of depth charge weapon from World War II that simultaneously fires a number of explosives into the water to create a pattern of underwater explosions intended to attack submerged submarines.

意味（5）

(Australia) A type of chocolate cake (or slice), somewhat similar to an American brownie.

There are hedgehogs with sultanas as well as breadcrumbs, carrot cakes and fruitcakes and banana walnut loaves.

意味（6）

A form of dredging machine.

The first machines merely loosened, but did not raise the stuff, a scouring being afterwards effected by means of sluices. These machines consisted of large bars or prongs placed vertically in a frame, and being fastened to a barge placed in the line of the sluices, the whole was inpelled forward by the current, thereby scouring the bed. Such a machine, called a hedgehog, is still used in Lincolnshire.

意味（7）

Medicago intertexta, the pods of which are armed with short spines.

意味（8）

Retzia capensis of South Africa.

意味（9）

The edible fungus Hydnum repandum.

Hedgehogs fruit from autumn until late spring. Many consumers are still unfamiliar with hedgehogs, and they have a relatively small commercial trade.

意味（10）

A kind of electrical transformer with open magnetic circuit, the ends of the iron wire core being turned outward and presenting a bristling appearance.

意味（11）

A way of serving food at a party, consisting of a half melon or potato etc. with individual cocktail sticks of cheese and pineapple stuck into it.

意味（12）

(differential geometry) A type of plane curve; see Hedgehog (geometry).