HOMUNCULUS
homunculus
(noun) a tiny fully formed individual that (according to the discredited theory of preformation) is supposed to be present in the sperm cell
manikin, mannikin, homunculus
(noun) a person who is very small but who is not otherwise deformed or abnormal
Source: WordNet® 3.1
Etymology
Noun
homunculus (plural homunculi)
A miniature man, once imagined by spermists to be present in human sperm.
The nerve map of the human body that exists on the parietal lobe of the human brain.
Source: Wiktionary
Ho*mun"cu*lus, n.; pl. Homunculi. Etym: [L., dim. of homo man.]
Definition: A little man; a dwarf; a manikin. Sterne.
Source: Webster’s Unabridged Dictionary 1913 Edition