An autoclave is a general term for a high-pressure reactor, designed to facilitate chemical reactions such as synthesis, decomposition, sublimation, and extraction in high-temperature and high-pressure environments. It is a heat- and pressure-resistant vessel used for industrial and research purposes.

Autoclaves must withstand extreme heat and pressure, making them ideal for various applications. One common example is the sterilization autoclave, used to sterilize laboratory equipment and other materials.