A deviation from the proper or expected course. See Synonyms at deviation.
A departure from the normal or typical: events that were aberrations from the norm.
Psychology A disorder or abnormal alteration in one's mental state.
A defect of focus, such as blurring in an image.
An imperfect image caused by a physical defect in an optical element, as in a lens.
The apparent displacement of the position of a celestial body in the direction of motion of an observer on Earth, caused by the motion of Earth and the finite velocity of light.
Genetics A deviation in the normal structure or number of chromosomes in an organism.
[Latin aberrātiō, aberrātiōn-, diversion, from aberrātus, past participle of aberrāre, to go astray : ab-, away from; see ab-1 + errāre, to stray; see ers- in Indo-European roots.]
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