The Collaborative International Dictionary of English v.0.48:

Androgyny \An*drog"y*ny\, Androgynism \An*drog"y*nism\, n.
   Union of both sexes in one individual; hermaphroditism.
   [1913 Webster] Android

WordNet (r) 3.0 (2006):

androgyny
    n 1: showing characteristics of both sexes [syn: androgyny,
         hermaphroditism, bisexuality]

Moby Thesaurus II by Grady Ward, 1.0:

19 Moby Thesaurus words for "androgyny":
   androgynism, effeminacy, effeminateness, epicenism, epicenity,
   feminism, gynandrism, gynandry, hermaphroditism, intersexualism,
   intersexuality, muliebrity, prissiness, pseudohermaphroditism,
   sissiness, transsexualism, transsexuality, unmanliness,
   womanishness