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Scioptic \Sci*op"tic\, a. [Gr. ? shadow + ? belonging to sight: cf. F. scioptique. See {Optic}.] (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.