What does homunculus mean?
A homunculus is a tiny humanlike being and, historically, a complete human supposedly produced through alchemy. Alchemical writers described elaborate processes for creating these miniature people, often enclosed within vessels and supplied with their own nourishment. The word later acquired an important philosophical and psychological use: a homunculus is an imagined miniature person within the mind who somehow perceives, interprets, or controls the rest of the person. The term is especially associated with the homunculus argument, which has been criticized as a form of reasoning known as the homunculus fallacy. Rather than explaining cognition, such an argument may merely relocate the problem by assigning the unexplained work to another internal agent. Today, “homunculus” is uncommon in general speech but recognized in discussions of alchemy, fantasy, philosophy of mind, and the history of scientific thought.
nounA small, humanlike being, especially a supposedly complete human being created by alchemical means. In philosophy and psychology, it can also mean a hypothetical miniature person imagined as the agent within the mind.
- A small, humanlike or miniature person.
- A supposedly complete human being created through alchemy.
- A hypothetical agent within the mind, as posited in the homunculus argument or fallacy.
"The alchemist claimed that a homunculus had been successfully created inside the sealed flask."
"The story describes a homunculus no larger than a doll, sealed within a glass vessel."
"Psychologists criticize the homunculus fallacy when a supposedly inner observer is invoked to explain how the mind understands itself."
The traditional Latin plural homunculi is standard; homunculuses is also encountered.
"The laboratory was believed to contain several tiny homunculi suspended in glass containers."
A failed alchemical recipe gave philosophy one of its sharpest metaphors: a tiny person inside the mind trying to do the thinking for us.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does homunculus come from?
Homunculus entered English in the early 17th century from New Latin, where it was a diminutive of Latin homo, meaning “man” or “human being.” Its early meaning encompassed a tiny human and the artificial human being sought by alchemists. The later philosophical sense developed from the idea of an internal miniature agent and is now chiefly remembered through the homunculus argument and homunculus fallacy. Its Latin relatives include human, humanity, hominid, and homicide.
Related word forms
How homunculus is actually used
The word is relatively rare outside literary, alchemical, philosophical, and psychological contexts. Its modern use is often critical or ironic, particularly when referring to an explanation that replaces one mystery with another.