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chromatic aberration

chro·mat·ic ab·er·ra·tion (plural chro·mat·ic ab·er·ra·tions)


noun  (plural chro·mat·ic ab·er·ra·tions) 
Definition:
 
color distortion caused by lens defect: an optical aberration in a lens, caused by a defect, leading to colored light of different colors being refracted differently

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