Definition: The term "proteidean" is a term in Greek mythology that refers to a type of animal or plant that possesses the ability to produce its own proteins. Proteideans were believed to be able to synthesize their own protein, which could then be used as food for themselves or other creatures. Proteideans were often depicted as being powerful and resourceful, and they were known for their incredible strength and agility. They were also known for their ability to survive in harsh environments,