"Hot damn, you're heroic."
In the field of cybernetics, a cyborg (short for cybernetic organism), or cybernetic lifeform, was a biological lifeform who had been cybernetically augmented. This augmentation, which might extend physical abilities beyond normal limitations, might be achieved through installation of bionic or cybernetic components. Cybernetic lifeforms could not survive without their organic components. (Star Trek: First Contact)
Before 2256, Lt. Cmdr. Airiam was extensively augmented with artificial parts following a shuttle accident which claimed the life of her husband Stephen while coming back from their honeymoon. (DIS: "Project Daedalus")
In 2327, Jean-Luc Picard received an artificial heart after he was stabbed by a Nausicaan during a bar brawl. (TNG: "Tapestry") When Kestra Troi-Riker pointed a bow and arrow at Picard following his arrival on Nepenthe in 2399, Picard said that since his artificial heart was made of solid duritanium, it would probably be better if she aimed it at his head instead of his chest. (PIC: "Nepenthe")
At some point in 2380, Ensign Sam Rutherford of the USS Cerritos received a cybernetic implant that had a variety of functions, such as a tactical computer and a recording device. (LD: "Second Contact", "Envoys", "Cupid's Errant Arrow") The implant was of Vulcan design, and initially attempted to suppress Rutherford's emotions against his will, though this issue was seemingly resolved. (LD: "Second Contact")