The Collaborative International Dictionary of English v.0.48:

Hermaphroditism \Her*maph"ro*dit*ism\, n. (Biol.)
   The union of the two sexes in the same individual, or the
   combination of some of their characteristics or organs in one
   individual. Hermeneutic

WordNet (r) 3.0 (2006):

hermaphroditism
    n 1: congenital condition in which external genitalia and
         internal sex organs have both male and female
         characteristics [syn: hermaphroditism, hermaphrodism]
    2: showing characteristics of both sexes [syn: androgyny,
       hermaphroditism, bisexuality]