WordNet (r) 3.0 (2006):

dracunculiasis
    n 1: a painful and debilitating infestation contracted by
         drinking stagnant water contaminated with Guinea worm
         larvae that can mature inside a human's abdomen until the
         worm emerges through a painful blister in the person's skin
         [syn: Guinea worm disease, Guinea worm,
         dracunculiasis]