When a case is reviewed by a higher court, this process is known as a(n)?

When a case is reviewed by a higher court, the process is referred to as an appeal. This legal procedure allows a party dissatisfied with a decision made by a lower court to seek a review and potential reversal or modification of that decision. Appeals typically focus on specific legal issues, including how the law was applied or whether the legal process was correctly followed in the lower court.

In the context of the other options, a stipulation refers to an agreement between parties on certain facts or procedures during a legal proceeding, which does not pertain to the review of a case by a higher court. A memorandum is generally a written document that communicates or summarizes information and is not specifically associated with the appellate process. Litigation refers to the process of taking legal action or the overall conduct of a lawsuit, which can involve both trial and appellate levels, but it does not specifically denote the review of a case by a higher court. Therefore, the term that accurately describes the process of seeking review from a higher court is appeal.