urchin.
A hedgehog.
Meaning & usage
A hedgehog.
A mischievous elf supposed sometimes to take the form of a hedgehog.
A mischievous child.
A street urchin, a child who lives, or spends most of their time, in the streets.
A sea urchin.
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.
A neutron-generating device that triggered the nuclear detonation of the earliest plutonium atomic bombs.
Where this word comes from
From Middle English yrchoun, irchoun (“hedgehog; sea urchin”), from Old Northern French irechon, from Vulgar Latin *ērīciōnem, from Latin ērīcius. Compare modern French hérisson, whence the English doublet herisson.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.