The Collaborative International Dictionary of English v.0.48:

coiled \coiled\ (koild), adj.
   curled or wound especially in concentric rings or spirals;
   as, a coiled snake ready to strike; the rope lay coiled on
   the deck. Opposite of uncoiled.

   Note: [Narrower terms: coiling, helical, spiral, spiraling,
         volute, voluted, whorled; convolute rolled
         longitudinally upon itself;curled, curled up;
         involute closely coiled so that the axis is
         obscured); looped, whorled; twined, twisted;
         convoluted; involute, rolled esp of petals or leaves
         in bud: having margins rolled inward); wound]
         [WordNet 1.5]