DNA replication or DNA Synthesis, the process of copying a double-stranded DNA molecule.

Self-replication, an organism making a copy of itself or replicating oneself

Replication (computer science), the use of redundant resources to improve reliability, fault-tolerance, or performance

One of the main principles of the scientific method, a.k.a. reproducibility

Semiconservative replication, mechanism of DNA replication

Option replication, a trading strategy to ensure at a certain date the payoff of an option without trading this option

Replication (optical media), the manufacture of CD and DVD discs by means other than burning writable discs

Replication (statistics), the repetition of the creation of a phenomenon

Replication (metallography), the use of thin plastic films to duplicate the microstructure of a component