The process of integrating robotics parts in an organics body. It can sometimes be used to refer to the opposite.
Cybernetics are generally used to replace missing or failing limbs, though sometimes they are used to weaponized an organic. Proper cybernetics generally use a lot of chemically inert metal and materials in their construction, primarily and especially at the areas where flesh and machine meld. The more conventional and stronger metals like Iron, steel etc are used for armor plating.
The very cornerstone of this school of technology is the Neural Interface.
The term can also refer to the integration of synthetics into a body.