Definition of astigmatism

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  • astigmatism is a valid Scrabble US word with a point value of 16
  • astigmatism is a valid Scrabble UK word with a point value of 16
  • astigmatism is a valid Words with friends word with a point value of 19

Definition of astigmatism

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

    Synonyms

    1. astigmia
  • (ophthalmology) impaired eyesight resulting usually from irregular conformation of the cornea; common in nearsighted people (noun)

    Synonyms

    1. astigmia

See definition of astigmatism in Merriam Webster