The visual sensation caused by stimulation of the retina by a series of intermittent light flashes occurring at a certain rate. SEE ALSO: f. fusion, critical f. fusion frequency.
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flick·er 'flik-ər n the wavering or fluttering visual sensation produced by intermittent light when the interval between flashes is not small enough to produce complete fusion of the individual impressions
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flick·er (flikґər) [A.S. flicorian to flutter] the visual sensation produced by regular flashes of light; the flashes may appear to flutter or to be steady according to the rate of interruption; called also flicker phenomenon. See also critical fusion frequency, under frequency.Medical dictionary. 2011.