helminthiasis

from WordNet (r) 3.0 (2006)

helminthiasis
    n 1: infestation of the body with parasitic worms

from The Collaborative International Dictionary of English v.0.48

Helminthiasis \Hel`min*thi"a*sis\, n. [NL., fr. Gr. ? to suffer
   from worms, fr. ?, ?, a worm.] (Med.)
   A disease in which worms are present in some part of the
   body.
   [1913 Webster]