The term "aberration" has several meanings depending on the context in which it is used:
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General Definition: Aberration refers to a deviation from the expected or usual course. It indicates that something is abnormal or out of the ordinary.
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Optics: In optics, aberration describes a defect in an imaging system that causes images to be distorted or blurred. There are various types, including chromatic aberration (color distortion) and spherical aberration (blurring due to lens curvature).
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Psychology: In psychology, aberration can refer to a departure from the normal mental state, potentially indicating some form of mental illness or irrational behavior.
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Astronomy: Aberration can also refer to the apparent shift in the position of celestial objects due to the motion of the observer or the effect of light travel time.
If you need information on a specific context or usage of the term "aberration," feel free to ask!