whorl
     n 1: a round shape formed by a series of concentric circles [syn:
           {coil}, {roll}, {curl}, {curlicue}, {ringlet}, {gyre},
          {scroll}]
     2: a strand or cluster of hair [syn: {lock}, {curl}, {ringlet}]
     3: a structure consisting of something wound in a continuous
        series of loops; "a coil of rope" [syn: {coil}, {spiral},
        {volute}, {helix}]
Source: WordNet® 2.0