A more thorough explanation:

Definition: In Scots law, an interlocutor is a nonfinal judicial order that disposes of any part of a case.

Example: In a divorce case, an interlocutor may be issued to determine child custody or spousal support before the final divorce decree is issued.

The example illustrates how an interlocutor is a legal order that resolves a specific issue within a case, but does not necessarily bring the case to a final conclusion. It is a way for the court to make progress on a case and address important issues in a timely manner.