- the act of departing from the right, normal, or usual course: Leaving that spelling error in her final report was an aberration from her usual meticulous work, and it surprised her colleagues.
- an instance of deviating from the ordinary, usual, or normal type: Certain disorders may be caused by a chromosomal aberration, such as the absence or duplication of a particular chromosome.Last season was an aberration in the league, with a sharp increase in the number of injuries to players.
- deviation from truth or from good ethics: Disgust may begin as physical revulsion that is eventually triggered by anything a person sees as moral aberration.
- a departure from sound thinking; lapse in judgment: Through some strange aberration or oversight, the author rejected my own much more subtle and effective amendments.
- apparent displacement of a heavenly body, owing to the motion of the earth in its orbit.
- any disturbance of the rays of a pencil of light such that they can no longer be brought to a sharp focus or form a clear image.
- a defect in a camera lens or lens system, due to flaws in design, material, or construction, that can distort the image.
- deviation from what is normal, expected, or usual
- departure from truth, morality, etc
- a lapse in control of one's mental faculties
- a defect in a lens or mirror that causes the formation of either a distorted image or one with coloured fringes
- the apparent displacement of a celestial body due to the finite speed of light and the motion of the observer with the earth
