from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. An optical device (often a toy) used to produce a form of anamorphosis or to view distorted figures
from the GNU version of the Collaborative International Dictionary of English
- n. An optical toy for producing amusing figures or pictures by means of two revolving disks, on one of which distorted figures are painted.
from The Century Dictionary and Cyclopedia
- n. An instrument for producing a peculiar kind of optical illusion by means of two disks rotating rapidly one behind the other.
Sorry, no etymologies found.