Androgyny refers to the possession of both “female” and “male” gender-role characteristics. Androgyny is a term that combines the Greek words for man and woman that refers to a state of ambiguous gender in which identifying sexual characteristics are uncertain or mixed. It differs from hermaphoditism, or intersexuality, a condition in which dual sexual characteristics are unambiguously present. To say that someone is andryogynous is to say that he or she combines stereotypically male and female attributes.
List of books: Androgyny
Other /More definition:
Androgyny refers to the presence of both "masculine" and "feminine" traits in a single person; the coexistence of both masculine and feminine personality traits in an individual.
It also means having high levels of both masculine and feminine characteristics; a personality trait consisting of masculine as well as feminine characteristics; a psychological identity that includes both masculine and feminine characteristics or traits.