Wiktionary
n. A soldier with remarkable strength, stamina, etc., especially if assisted by technology or genetics.
Wikipedia
The supersoldier (or super soldier) is a concept soldier, often fictional, capable of operating beyond normal human limits or abilities.
Usage examples of "supersoldier".
Public taste had changed, and the majority now went for psychedelic space fantasy, the incredibly violent Supersoldier series, and, of course, the fifty-seven hundred varieties of sex scenario that were in the catalog in a section all to themselves.
The first step had been the caste of supersoldiers who had brought the Unification Wars to a sudden end, crushing and grinding the contending interstellar states into the iron-gray sameness of the Draconis Empire.
The strictures governing human cloning were motivated not just by fear of totalitarian governments force-growing armies of identical supersoldiers, but also by the danger of wealthy egomaniacs using it as a substitute for natural reproduction.
One she knew the answer to even as he said, “There have been science-fiction stories about building supersoldiers for a long time, but this program is the real deal—or will be, if the techniques are perfected.
He was fairly weak, but recovering quickly, though Julian had made noises about even laboratory-bred supersoldiers needing their rest when they have the stuffing beaten out of them.