A chimera is a supernatural creature created by the new villains of season 5, The Dread Doctors.
Chimeras are a mixture of 2 or more supernatural creatures, also called a hybrid. For example, Tracy, she started out as a werewolf and then became a Kanima.
A Chimera in old mythology would be several different parts of an animal, for example the head of a snake with the body of a lion.
