Aberration

Aberration has several meanings:

An abnormality of chromosomes
A disorder in one's mental state (see Mental illness)

In optics:

Optical aberration, an imperfection in image formation by an optical system
Spherical aberration, which occurs when light rays strike a lens or mirror near its edge
Chromatic aberration, caused by differences in refractive index for different wavelengths of light
Defocus aberration, which occurs when a system is out of focus

In relativity:

Aberration of light, an astronomical phenomenon which produces an apparent motion of celestial objects
Relativistic aberration, aberration of light relating to near light speeds

In entertainment:

Aberration (Dungeons & Dragons), a creature type in the role-playing game
Aberration (film), the horror movie

MeSH D001523 Mental disorder or mental illness are terms used to refer a psychological or physiological pattern that occurs in an individual and is usually associated with distress or disability that is not expected as part of normal development or culture.
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Aberration in optical systems (lenses, prisms, mirrors or series of them intended to produce a sharp image) generally leads to blurring of the image. It occurs when light from one point of an object after transmission through the system does not converge into (or does not diverge
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spherical aberration is a deviation from the norm resulting in an image imperfection that occurs due to the increased refraction of light rays that occurs when rays strike a lens or a reflection of light rays that occurs when rays strike a mirror near its edge, in comparison with
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chromatic aberration is caused by a lens having a different refractive index for different wavelengths of light (the dispersion of the lens). The term "purple fringing" is commonly used in photography, although not all purple fringing can be attributed to chromatic aberration.
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In optics, defocus is the one aberration familiar to nearly everyone who has ever needed eyeglasses or used a camera, videocamera, microscope, telescope, or binoculars, as it simply means out of focus.
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The aberration of light (also referred to as astronomical aberration or stellar aberration) is an astronomical phenomenon which produces an apparent motion of celestial objects.
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In Einstein's special theory of relativity, and in other relativistic models such as Newtonian emission theory, the aberration of light obeys a particular equation referred to as the relativistic aberration formula.
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In the Dungeons & Dragons fantasy role-playing game, aberration is a type of creature, or "creature type". Aberrations generally all have bizarre anatomies, strange abilities, alien mindsets, or any combination thereof.

All aberrations have darkvision out to 60 feet.
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All Movie Guide profile
IMDb profile

Aberration is a 1997 film directed by Tim Boxell, about a woman trying to escape from mutant lizards in the woods. The story is about mutated reptiles that live in isolation and breed to be strong.
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