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English definition of “astigmatism”

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astigmatism

noun [U] uk   /əˈstɪɡ.mə.tɪ.zəm/ specialized us  
a fault in the lens of the eye that reduces the quality of sight, especially a fault that stops the eye from focusing
astigmatic
adjective uk   /ˌæs.tɪɡˈmæt.ɪk/ us    /-ˈmæt̬-/
Translations of “astigmatism”
in Chinese (Traditional) (尤指妨礙眼睛對焦的)散光…
in Chinese (Simplified) (尤指妨碍眼睛调焦的)散光,散视…
(Definition of astigmatism from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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