Cyborg

A cyborg was a cybernetic organism—that is, a living, sentient organism with mechanical prostheses. Often covered in synthflesh/synthskin, these prostheses served one or more of three purposes:

Life support, often due to injuries sustained. Examples of this were Darth Vader, General Grievous, and Lumiya. Prosthetic replacements for parts that were lost, though they may not be required for life itself. An example of this was the prosthetic hand used by Luke Skywalker, as well the mechanical arm used by Anakin Skywalker. After the latter became Darth Vader and sustained life-threatening injuries, losing all his limbs, they were replaced by prosthetic ones. To enhance one's abilities, as in the case of Lobot. General Grievous's abilities were also significantly enhanced by his prostheses, though his main reason for becoming a cyborg was that he had sustained massive injuries and would have died otherwise. However, his four arms, each with its own lightsaber, did improve his swordsmanship beyond his native abilities. Similarly, Darth Vader's physical strength and stamina were greatly enhanced by his cybernetic augmentations, but their primary function was similar to Grievous's.

Cyborg also referred to creatures that were half-organic and half-droid. They were generally regarded as "soulless abominations." Cyberneticists were responsible for developing and creating cybernetic components.

Text and facts from the “Cyborg/Legends” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.