phantom
This term evokes a sense of haunting or elusive presence, often carrying a chilling or mysterious connotation when referring to spirits. It suggests something that is visible or felt but lacks physical substance, creating a gap between perception and reality. In medical and technical contexts, the word shifts from the supernatural to the simulated. It describes a precise physical proxy used to mimic human tissue, where the "illusion" is a deliberate tool for safety and calibration rather than a psychological or paranormal phenomenon.
Meanings
A ghost or an apparition of a dead person.
"The old castle is said to be haunted by a phantom of a former king."
Something that exists only in the mind or imagination; an illusion.
"He was chasing a phantom hope that the company would suddenly recover."
A dummy or model of a human body used for medical training or radiation testing.
"The technician calibrated the X-ray machine using a plastic phantom."
Existing only in appearance or as an illusion; not real.
"The patient suffered from phantom limb pain long after the amputation."