Definition of aberration in English:

aberration

Syllabification: ab·er·ra·tion
Pronunciation: /ˌabəˈrāSHən
 
/

noun

  • 1A departure from what is normal, usual, or expected, typically one that is unwelcome: they described the outbreak of violence in the area as an aberration
    More example sentences
    • According to the revisionists, mechanical television was an aberration which is not to be taken seriously.
    • His experience may be transformed from an unfortunate aberration into official company policy.
    • Having grown up during the heady days of the late 1990s, they think the current period is an aberration.
  • 1.1 Biology A characteristic that deviates from the normal type: color aberrations
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    • These tests score either chromosomal structural aberrations at metaphase or micronuclei at interphase.
    • The number of cells with chromosomal aberrations among 100 well-spread metaphases was recorded.
    • Cells were classified with regard to the presence of abnormal metaphases and aberrations of any of the stages of mitosis.
  • 1.2 Optics The failure of rays to converge at one focus because of limitations or defects in a lens or mirror.
    More example sentences
    • The problems with the microlens array design are low light throughput, non-uniform intensity foci, and lens aberrations.
    • The slight asymmetry in both the radial and image axis direction indicates small aberrations in the microscope lens.
    • The design of the complete lens system is focused on controlling aberrations in the optical image.
  • 1.3 Astronomy The apparent displacement of a celestial object from its true position, caused by the relative motion of the observer and the object.
    More example sentences
    • This was still an astronomical method, but Bradley used observations of the aberration of light from stars.

Derivatives

aberrational

adjective
More example sentences
  • Any process of organization is necessarily aberrational within the general economy.
  • This type of database can tell us about aberrational outbreaks of food poisoning.
  • This is an aberrational number of deaths in such a short period.

Origin

late 16th century: from Latin aberratio(n-), from aberrare 'to stray' (see aberrant).

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