A more thorough explanation:

Definition: Oraculum is a Latin word that means "a solemn declaration." In Roman law, it refers to an order or decision made by the emperor during the later empire.

Example: When the emperor issued an oraculum, it was considered a final decision that had to be obeyed by everyone in the empire.

Explanation: The oraculum was a powerful tool used by the emperor to make important decisions that affected the entire empire. It was a solemn declaration that had to be followed by everyone, and it was considered final. The example illustrates how the oraculum was used in Roman law to make decisions that had to be obeyed by all.