Homunculus
A homunculus (UK: /hɒˈmʌŋkjʊləs/ hom-UNK-yuul-əs, US: /hoʊˈ-/ hohm-, Latin: [hɔˈmʊŋkʊlʊs]; "little person", pl.: homunculi UK: /hɒˈmʌŋkjʊlaɪ/ hom-UNK-yuul-lye, US: /hoʊˈ-/ hohm-, Latin: [hɔˈmʊŋkʊliː]) is a small artificial human or human-like being. Popularized in 16th-century alchemy and 19th-century fiction, it has historically been referred to as the creation of a miniature, fully formed human or humanoid being. The concept has roots in preformationism as well as earlier folklore and alchemic traditions.
The term lends its name to the cortical homunculus, an image of a person with the size of the body parts distorted to represent how much area of the cerebral cortex of the brain is devoted to it.