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| + | '''Aberration''' has several meanings generally related to the idea of a deviation from the [[norm]], [[normal distribution]] or from what is usually expected: |
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| − | {{SPPsy}} |
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| − | '''Aberration ''' ([[Latin]] ''ab,'' from or away + ''errare,'' to wander), a deviation or wandering, especially used in the figurative sense as: |
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| − | # In [[ethics]], a deviation from the truth, however this does not carry a negative connotation. |
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| + | In '''psychology''': |
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| − | # In [[pathology]], a mental derangement. |
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| + | *A temporary disorder in one's [[behaviour]] or [[mental state]]. (see [[abnormal psychology]], [[mental illness]], [[conduct disorder]]) |
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| − | # In [[zoology]] and [[botany]], atypical development or structure. |
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| − | # In [[optics]], the word has two special applications: |
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| + | In '''optics''': |
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| − | ::4.1 [[Aberration of light]], also referred to as ''astronomical aberration'' or ''stellar aberration''. |
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| + | *[[Aberration in optical systems]], an effect that causes light from one point of an object after transmission through the system to arrive at different points So for example in [[astigmatism]], dioptric variation, or any other defect of the [[lens]] of the [[eye]] which deflects light so it is not focused on the [[retina]] |
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| − | ::4.2 [[Aberration in optical systems]], see also the article on [[Lens (optics)|lenses]]. |
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| + | **[[Chromatic aberration]], caused by a lens having a different refractive index for different wavelengths of light. As a consequence, in the eye their focus onto the retina does not perfectly overlap, causing blurred [[vision]]. |
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| + | **[[Defocus aberration]], meaning out of focus |
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| + | **[[Spherical aberration]], an image imperfection that occurs due to the increased refraction of light rays that occurs when rays strike a lens or mirror near its edge |
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| + | In '''biology''': |
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| + | *An abnormality of [[Chromosome#Chromosomal_aberrations|chromosomes]] |
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| + | ==See also== |
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| + | *[[Abnormal]] |
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{{disambig}} |
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| − | [[ca:Aberració (desambiguació)]] |
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| − | [[da:Aberration]] |
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| − | [[de:Aberration]] |
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| − | [[es:Aberración]] |
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| − | [[pl:Aberracja]] |
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| − | [[ru:Аберрация]] |
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| − | [[sl:Aberacija]] |
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| − | [[sv:Aberration]] |
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| − | [[uk:Аберація]] |
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{{enWP| Aberration}} |
{{enWP| Aberration}} |
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Latest revision as of 22:15, 28 October 2011
Aberration has several meanings generally related to the idea of a deviation from the norm, normal distribution or from what is usually expected:
In psychology:
- A temporary disorder in one's behaviour or mental state. (see abnormal psychology, mental illness, conduct disorder)
In optics:
- Aberration in optical systems, an effect that causes light from one point of an object after transmission through the system to arrive at different points So for example in astigmatism, dioptric variation, or any other defect of the lens of the eye which deflects light so it is not focused on the retina
- Chromatic aberration, caused by a lens having a different refractive index for different wavelengths of light. As a consequence, in the eye their focus onto the retina does not perfectly overlap, causing blurred vision.
- Defocus aberration, meaning out of focus
- Spherical aberration, an image imperfection that occurs due to the increased refraction of light rays that occurs when rays strike a lens or mirror near its edge
In biology:
- An abnormality of chromosomes
See also
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