A wild, hybrid creature, the Chimera had the head of a lion, the body of a goat, and the tail of a serpent and it breathed fire. It was killed by the Corinthian hero Bellerophon on one of his journeys. Today a chimera is a fantastic delusion, an illusory creation of the mind. It can also refer to a hybrid organism, usually a plant. Chimerical and Chimeric refer to something as unreal, imaginary, or fantastic. These adjectives can also signify that one is given to fantasy.