/dɪˈkriːtəl/ – adjective
Definition: chỉ lệnh của đức giáo hoàng.
A more thorough explanation: A decretal is a papal letter or decree, especially one issued by the pope in response to a particular case or question of canon law. It is a type of official communication or ruling from the Roman Catholic Church hierarchy.
Example: The judge cited a decretal in support of her decision to grant the motion for summary judgment.