Chimera

Chimera chi·me·ra (noun) kīˈmirə,kəˈmirə

• Greek mythological fire-breathing female monster with a lion’s head, a goat’s body, and a serpent’s tail.  

• any mythical animal with parts taken from various animals.

• an illusion that is hoped or wished for but impossible to achieve.

• an individual, organ, or part consisting of tissues of diverse genetic constitution. A hybrid created through fusion of a sperm and an egg from different species is a chimera.