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Noun: urchin  ur-chin
  1. Poor and often mischievous city child
     
  2. Shallow-water echinoderms having soft bodies enclosed in thin spiny globular shells
    - sea urchin

Derived forms: urchins

Type of: child, echinoderm, fry, kid, minor, nestling, nipper, shaver, small fry, tiddler [Brit], tike, tyke, wean [UK, Ireland], youngster

Part of: class Echinoidea, Echinoidea

Encyclopedia: Urchin