An answer to a reply; or, in general, an answer or reply.

The defendant's answer to the plaintiff's replication.

Defendant's answer to the plaintiff's reply.

Opportunity for the side that opened the case to offer limited response to evidence presented during the rebuttal by the opposing side. (See rebut.)

Opportunity for the side that opened a case to respond to evidence presented during the rebuttal by the opposing side.

Erde is physically divided into eight rejoinders. The ninth rejoinder is the entire union.

To make a rejoinder.