Meaning & use

aberration

noun·Advanced

Last updated

UK/ˌæb.əˈreɪ.ʃən/
US/ˌæb.ɚˈreɪ.ʃən/

Meanings

  1. nouncountable

    A temporary or unusual departure from what is normal, expected, or correct, often one that is unwelcome.

    Grammar: Takes an article and is often followed by from or in: an aberration from the norm.

    Patterns

    • an aberration from something
    • an aberration in something
    • a temporary/statistical aberration

    The poor sales figure was an aberration caused by the storm.

    His rude reply was an aberration from his usual polite manner.

  2. nouncountable or uncountablephysicsspecialist

    In physics and optics, distortion in an image caused by rays not focusing where they should.

    Grammar: Often uncountable in technical phrases such as chromatic aberration; countable when naming a particular defect.

    Patterns

    • chromatic aberration
    • spherical aberration
    • an aberration in the image

    The telescope photo showed slight chromatic aberration at the edges.

    A better lens can reduce spherical aberration.

  3. nouncountable or uncountablebiologyspecialist

    In biology, a deviation from the normal development, structure, or type of an organism or cell.

    Grammar: Usually technical; use uncountable for the general phenomenon and countable for a specific case.

    Patterns

    • a genetic aberration
    • a chromosomal aberration
    • aberration in development

    Scientists examined whether a chromosomal aberration caused the disorder.

    The mutation produced an aberration in the plant's normal leaf pattern.

Word forms

pluralaberrations

Common combinations

a temporary aberration
The delay was a temporary aberration, not a sign of failure.
a statistical aberration
One high score may be only a statistical aberration.
an aberration from the norm
The results were an aberration from the norm established over years.
chromatic aberration
Cheap lenses often show chromatic aberration around bright objects.

Synonyms and how they differ

anomaly
A neutral departure from the expected pattern; it need not be unwelcome or temporary.
deviation
A general movement away from a rule, plan, or average; aberration suggests a stranger, often brief lapse.
irregularity
A break from a normal rule or smooth pattern, often smaller or more administrative than an aberration.
lapse
A brief failure, usually of judgment or behavior by a person, not a result or natural pattern.

Opposites

Word family

aberrant adjective
Departing from what is normal or expected.
aberrantly adverb
In a way that departs from the normal or expected.

Commonly confused: aberration or arbitration? aberration or abhorrence?

aberration vs arbitration

Arbitration is a formal process for settling a dispute; an aberration is a departure from the normal.

aberration vs abhorrence

Abhorrence is strong hatred; the similar-looking aberration concerns unusual deviation.

Practice

Which phrase best means a brief, unwelcome departure from the usual pattern?

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