Photodrome Pho"to*drome, n. [Photo- + Gr. ? to run.] (Physics) An apparatus consisting of a large wheel with spokes, which when turning very rapidly is illuminated by momentary flashes of light passing through slits in a rotating disk. By properly timing the succession of flashes the wheel is made to appear to be motionless, or to rotate more or less slowly in either direction. [1913 Webster]

The Collaborative International Dictionary of English. 2000.

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