coil
     n 1: a structure consisting of something wound in a continuous
          series of loops; "a coil of rope" [syn: {spiral}, {volute},
           {whorl}, {helix}]
     2: a round shape formed by a series of concentric circles [syn:
         {whorl}, {roll}, {curl}, {curlicue}, {ringlet}, {gyre}, {scroll}]
     3: a transformer that supplies high voltage to spark plugs in a
        gasoline engine
     4: a contraceptive device placed inside a woman's womb
     5: tubing that is wound in a spiral
     6: reactor consisting of a spiral of insulated wire that
        introduces inductance into a circuit
     v 1: to wind or move in a spiral course; "the muscles and nerves
          of his fine drawn body were coiling for action"; "black
          smoke coiling up into the sky"; "the young people
          gyrated on the dance floor" [syn: {gyrate}, {spiral}]
     2: make without a potter's wheel; "This famous potter
        hand-builds all of her vessels" [syn: {handbuild}, {hand-build}]
     3: wind around something in coils or loops [syn: {loop}, {curl}]
        [ant: {uncoil}]
Source: WordNet® 2.0