phi phenomenon

noun

Definition of phi phenomenon

: apparent motion resulting from an orderly sequence of stimuli (such 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

in the meaning defined above

See Words from the same year

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Medical Dictionary

phi phenomenon

noun \ ˈfī- \

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