2. (Zo["o]l.) A sea urchin. See {Sea urchin}.
3. A mischievous elf supposed sometimes to take the form a
hedgehog. ``We 'll dress [them] like urchins, ouphes, and
fairies.'' --Shak.
4. A pert or roguish child; -- now commonly used only of a
boy.
And the urchins that stand with their thievish eyes
Forever on watch ran off each with a prize. --W.
Howitt.
You did indeed dissemble, you urchin you; but
where's the girl that won't dissemble for an
husband? --Goldsmith.
5. 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. --Knight.
{Urchin fish} (Zo["o]l.), a diodon.