from the GNU version of the Collaborative International Dictionary of English
- n. An instrument for ascertaining the susceptibility of a person to hypnotic influences.
from The Century Dictionary and Cyclopedia
- n. See the extract.
Sorry, no etymologies found.
Here it may be added that Dr. Gessmann, a Vienna scientist who has made a specialty of hypnotic studies, has invented and successfully applied an instrument called a hypnoscope, consisting of an arrangement of magnets for the purpose of ascertaining whether any person is a good hypnotic subject.