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Definition of Human cloning

Medically reviewed by Dr. Otari Nergadze, Neurosurgeon | Updated: January 2026

Human cloning: Human cloning for the purposes of creating a human being. Also called human reproductive cloning. The physician and essayist Lewis Thomas commented: "The cloning of human beings is on most of the lists of things to worry about from science, along with behavior-control, genetic engineering, transplanted heads, computer poetry, and the unrestrained growth of plastic flowers." (Notes of a biology watcher: on cloning a human being. N Engl J Med. 1974; 291:1296-97)