ep·i·cene 
(ĕpĭ-sēn′)
(ĕpĭ-sēn′)adj.
1. Having characteristics of both sexes.
2. Having characteristics traditionally ascribed to the other sex, especially as a male who is considered to be effeminate.
3. Having no characteristics of either sex.
4. Linguistics Having only one form for both the male and the female: an epicene pronoun.
n.
1. One that is epicene.
2. Linguistics An epicene word.
[Middle English, having only one form of the noun for either gender, from Latin epicoenus, from Greek epikoinos, in common : epi-, epi- + koinos, common; see kom in the Appendix of Indo-European roots.]
epi·cen′ism n.