jacketed

Jacketed is an adjective describing an object that is equipped with an external covering or jacket, an outer layer that encloses an inner component. The jacket can be integral to the design or a removable cover, and it serves purposes such as protection, insulation, thermal management, or containment.

In industrial and engineering contexts, jacketed refers to vessels, reactors, tanks, pipes, and cables that have an outer jacket surrounding an inner process or conduit. Jacketed reactors and storage tanks circulate heating or cooling fluids through the jacket to control temperature. Jacketed pipes provide insulation and protection from the environment, while jacketed cables have an outer sheath to protect conductors and maintain electrical insulation.

In materials science and defense, jacketed bullets are projectiles with a metal jacket around a core, typically lead. The jacket improves feeding in firearms, controls expansion on impact, and reduces core fragmentation.

In culinary usage, jacketed potatoes are potatoes cooked with the skins on, often baked, resulting in a heated flesh inside a protective outer skin. The term jacket can also appear in other food preparation contexts to describe protective or enclosing coverings used during processing.

Overall, jacketed designs are common where temperature control, protection, or durability is important, spanning industrial equipment, ammunitions, and cooking terms.