chimera
chi.me.ra or chi.mae.ra \ki--'mir-*, k*-\ n [L chimaera, fr. Gk chimaira she-goat, chimera; akin to Gk cheim]o-n winter cap 1a: a she-monster in Greek mythology usu. with a lion's head vomiting flame s, a goat's body, and a serpent's tail 1b: an imaginary monster compounded of incongruous parts 2: an illusion or fabrication of the mind; esp : an unrealizable dr eam 3: an individual, organ or part consisting of tissues of diverse genetic co nstitution and occurring esp. in plants and most frequently at a graft union
Webster's English Dictionary