Urchin :: Urchin (n.) A sea urchin. See Sea urchin.
Urchin :: Urchin (n.) A mischievous elf supposed sometimes to take the form a hedgehog.
Urchin :: Urchin (n.) A pert or roguish child; -- now commonly used only of a boy.
Urchin :: Urchin (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..