a hedgehog is a form of:

Hedgehog



noun
1.
(A small, insect eating manual, whose back is covered with fur and stiff hairs which harden into spines at the Hedgehog ends, porcupine) ប្រមា, សត្វកាំប្រមា
ENGLISH MEANING
noun
1.
A species of Medicago (M. intertexta), the pods of which are armed with short spines; -- popularly so called.
2.
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.
3.
The Canadian porcupine.
4.
A form of dredging machine.
5.
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.