Source : Webster's Revised Unabridged Dictionary (1913)

Epicene \Ep"i*cene\, a. & n. [L. epicoenus, Gr. ?; fr. 'epi` + ?
   common; cf. F. ['e]pic[`e]ne.]
   1. 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.

   2. Fig.: Sexless; neither one thing nor the other.

            The literary prigs epicene.           --Prof.
                                                  Wilson.

            He represented an epicene species, neither churchman
            nor layman.                           --J. A.
                                                  Symonds.

Source : WordNet®

epicene
     adj 1: having an ambiguous sexual identity [syn: {bisexual}]
     2: having unsuitable feminine qualities [syn: {effeminate}, {emasculate},
         {cissy}, {sissified}, {sissyish}, {sissy}]