CHIMERA

noun \kī-ˈmir-ə, kə-\ [ki-meer-uh, kahy-meer-uh]
  1. fire-breathing she-monster in Greek mythology having a lion's head, a goat's body, and a serpent's tail
  2. an imaginary monster compounded of incongruous parts
  3. an illusion or fabrication of the mind ; especially : an unrealizable dream