| English > English | |
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| urchin | |
| 1. n. A mischievous child. |  |
| 2. n. A street urchin, a child who lives, or spends most of their time, in the streets. | |
| 3. n. (archaic) A hedgehog. | |
| 4. n. A sea urchin. | |
| 5. n. A mischievous elf supposed sometimes to take the form of a hedgehog. | |
| 6. n. One of a pair in a series of small card cylinders arranged around a carding drum; so called from its fancied resemblance to the hedgehog. | |
| 7. n. (historical) A neutron-generating device that triggered the nuclear detonation of the earliest plutonium atomic bombs. | |
