EPICENE

adj & ·noun fig.: sexless; neither one thing nor the other.

2. epicene ·adj & ·noun common to both sexes;

— a term applied, in grammar, to such nouns as have but one form of gender, either the masculine or feminine, to indicate animals of both sexes; as boy^s, bos, for the ox and cow; sometimes applied to eunuchs and hermaphrodites.