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Definition of aberration
a departure from what is normal, usual, or expected, typically one that is unwelcome:they described the outbreak of violence in the area as an aberration Biology a characteristic that deviates from the normal type:color aberrations Optics the failure of rays to converge at one focus because of limitations or defects in a lens or mirror. Astronomy the apparent displacement of a celestial object from its true position, caused by the relative motion of the observer and the object.
Remember that aberration
has one b
and a double r