Determine whether the following definition is stipulative, lexical, precising, theoretical, or persuasive.
"Radioactive area" means, for purposes of the U.S. Nuclear Regulatory Commission, any area accessible to individuals in which there exists radiation at such levels that a major portion of the body could receive in any one hour a dose in excess of 5 millirems or in any five consecutive days a dose in excess of 100 millirems.