duplicatio
duplicatio (d[y]oo-pli-kay-shee-oh), n. [fr. Latin duplicare “to double”] 1. Roman & civil law. A defendant’s answer to the plaintiff’s replication, similar to a rejoinder in common law. — Also termed (in Scots law) duply. See REPLICATION. 2. The fourth in a series. 3. A duplication of a transaction.