varicosity

from WordNet (r) 3.0 (2006)

varicosity
    n 1: varix or varicose condition in which a vein is swollen and
         tortuous

from The Collaborative International Dictionary of English v.0.48

Varicosity \Var`i*cos"i*ty\, n.
   1. The quality or state of being varicose.
      [1913 Webster]

   2. An enlargement or swelling in a vessel, fiber, or the
      like; a varix; as, the varicosities of nerve fibers.
      [1913 Webster]