noun (n)

• the shape of something rotating rapidly(noun.shape)

  Synonym:
  swirl, vortex, whirl
  

  source: wordnet30
• a convex fold or elevation in the surface of the brain(noun.body)

  Synonym:
  gyrus
  

  source: wordnet30
• the action of coiling or twisting or winding together(noun.act)

  source: wordnet30
• The act of rolling anything upon itself, or one thing upon another; a winding motion.(noun)

  source: webster1913