1. a person who appeals a legal decision to a higher court
Usage: legal term; also spelled 'appealer' in some contexts
2. in medieval law, a person who accuses another of a crime
Usage: archaic; historical legal usage

Examples

• The appellor filed a motion requesting a review of the lower court's decision.
• In the appellor's brief, the attorney argued that the evidence was insufficient.
• The appellor had thirty days to submit the appeal to the appellate court.
• As the appellor, she bore the burden of demonstrating reversible error.
• The appellor's case was heard before a panel of three judges.