certiorari
n. (sersh-oh-rare-ee) a writ (order) of a higher court to a lower court to send all the documents in a case to it so the higher court can review the lower court's decision. Certiorari is most commonly used by the U.S. Supreme Court, which is selective about which cases it will hear on appeal. To appeal to the Supreme Court one applies to the Supreme Court for a writ of certiorari, which it grants at its discretion and only when at least three members believe that the case involves a sufficiently significant federal question in the public interest. By denying such a writ the Supreme Court says it will let the lower court decision stand, particularly if it conforms to accepted precedents (previously decided cases).