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Webster 1913 Edition
photodrome
pho′to-drome
(fō′tō̍-drōm)
, Noun.
[
Photo-
+ Gr. δραμεῖν
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.