cake urchin

Cake \Cake\ (k[=a]k), n. [OE. cake, kaak; akin to Dan. kage, Sw.
   & Icel. kaka, D. koek, G.kuchen, OHG. chuocho.]
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   1. A small mass of dough baked; especially, a thin loaf from
      unleavened dough; as, an oatmeal cake; johnnycake.
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   2. A sweetened composition of flour and other ingredients,
      leavened or unleavened, baked in a loaf or mass of any
      size or shape.
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   3. A thin wafer-shaped mass of fried batter; a griddlecake or
      pancake; as buckwheat cakes.
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   4. A mass of matter concreted, congealed, or molded into a
      solid mass of any form, esp. into a form rather flat than
      high; as, a cake of soap; an ague cake.
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            Cakes of rusting ice come rolling down the flood.
                                                  --Dryden.
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   {Cake urchin} (Zool), any species of flat sea urchins
      belonging to the {Clypeastroidea}.

   {Oil cake} the refuse of flax seed, cotton seed, or other
      vegetable substance from which oil has been expressed,
      compacted into a solid mass, and used as food for cattle,
      for manure, or for other purposes.

   {To have one's cake dough}, to fail or be disappointed in
      what one has undertaken or expected. --Shak.
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