Meaning

2 senses
  1. (countable, uncountable)A defect of a lens such that light rays coming from a point do not meet at a focal point so that the image is blurred.

    Astigmatismus

    астигмати́змastigmatízm

    (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point

  2. (countable, uncountable)A disorder of the vision, usually due to a misshapen cornea, such that light does not focus correctly on the retina causing a blurred image.

    Astigmatismus

    астигмати́змastigmatízm

Examples

5 sentences
  1. Tom has astigmatism.

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  2. She wore glasses because she had astigmatism.

    ruОна носила очки, потому что у нее был астигматизм.

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  3. I have an astigmatism in both eyes.

    ruУ меня астигматизм на обоих глазах.

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  4. Contact lenses are more able to correct strong astigmatism.

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  5. I have astigmatism.

    ruУ меня астигматизм.

    deIch habe Astigmatismus.

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Translations

8 languages
Русский
By meaning 1
defect of a lens:
Deutsch
By meaning 1
defect of a lens:

Origin

From a- (negative prefix) + stem of Ancient Greek στίγμα (stígma, “mark, point”) + -ism. C

From a- (negative prefix) + stem of Ancient Greek στίγμα (stígma, “mark, point”) + -ism. Coined by English polymath William Whewell in 1846.

Wiktionary, CC BY-SA 4.0 · source

Forms

plural: astigmatisms
Singularastigmatism
Pluralastigmatisms

regular

Synonyms

1 synonyms
Close in meaning
  • (optics) defect in an optical system in which light rays from a single point fail to converge in a single focal point:astigmia
  • (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people:astigmia

Antonyms

1 antonyms

Word family

10 related words

See also

neighbours in the dictionary
astigmatism — meaning, examples, forms, synonyms | Krumeto