Dictionary![]() ![]() phi-phe•nom•e•nonPronunciation: (fī'fi-nom"u-non", -nun), [key] —n., —pl. -naPronunciation: (-nu). [key] Psychol. motion perceived by a subject, esp. the illusion of movement produced when stationary stimuli, as pictures or lights, are presented in rapid succession and are sometimes in slightly different positions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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