(1) “Appellate court” means a court of this State having direct appellate jurisdiction over a lower court.

(2) “Lower court” means any court of this State over which an appellate court of this State has direct appellate jurisdiction. The Superior Court is a lower court for the purposes of an appeal to the Supreme Court, whether the action of the Superior Court which is subject to review by the Supreme Court is action resulting from the original jurisdiction of that Court in a trial de novo in a proceeding initiated there or initiated in a lower court, or action resulting from a review of action of a lower court under this chapter or any other provision permitting appellate review in the Superior Court.

(3) “Order” includes any judgment, order, ruling, decision, memorandum, opinion, or equivalent entry of the lower court which constitutes a fixed determination by the lower court.