Scioptic

Sci`op´tic


a.1.(Opt.) Of or pertaining to an optical arrangement for forming images in a darkened room, usually called scioptic ball.
Scioptic ball
(Opt.) the lens of a camera obscura mounted in a wooden ball which fits a socket in a window shutter so as to be readily turned, like the eye, to different parts of the landscape.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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