Dictionary

phi phenomenon

phi phenomenon

noun

Definition of PHI PHENOMENON

:  apparent motion resulting from an orderly sequence of stimuli (as lights flashed in rapid succession a short distance apart on a sign) without any actual motion being presented to the eye

First Known Use of PHI PHENOMENON

circa 1928

phi phenomenon

noun \ˈfī-\   (Medical Dictionary)

Medical Definition of PHI PHENOMENON

:  apparent motion resulting from an orderly sequence of stimuli (as lights flashed in rapid succession a short distance apart on a sign) without any actual motion being presented to the eye—compare apparent motion

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