The term technocracy derives from the Greek words tekhne meaning skill and kratos meaning power, as in government, or rule. Thus the term technocracy denotes a system of government where those who have knowledge, expertise or skills compose the governing body. The term technocrat then denotes a person who either supports or promotes the concept of technocracy or who has membership of a technocratic government. A technocratic government may have a number of implementation with an administration composed of a body of scientist and engineers forming one possible type.