A more thorough explanation:

Definition: A cross-interrogatory is a written question that is submitted to an opposing party in a lawsuit as part of discovery. It is a type of interrogatory that is sent by a party who has received a set of interrogatories.

Example: If Party A sends a set of interrogatories to Party B, Party B may respond with a set of cross-interrogatories to Party A. For instance, Party B may ask Party A to provide more information about a particular aspect of the case or to clarify a statement made in their interrogatories.

Explanation: The example illustrates how a cross-interrogatory is used in a legal context. It shows that it is a type of written question that is sent by a party in response to a set of interrogatories received from the opposing party. The purpose of a cross-interrogatory is to obtain more information or clarification about a particular aspect of the case.