What is an optical toy for producing amusing figures or pictures by means of two revolving disks, on one of which distorted figures are painted called?
anorthoscope — An optical toy for producing amusing figures or pictures by means of two revolving disks, on one of which distorted figures are painted. (Webster's 1913.)
Sources
- Webster's Unabridged Dictionary, 1913 edition (public domain, via GCIDE / Project Gutenberg).
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