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.