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antireflection coating

American  
[an-tee-ri-flek-shuhn, an-tahy-] / ˌæn ti rɪˈflɛk ʃən, ˌæn taɪ- /

noun

Optics.
  1. a thin film consisting of one or more layers of transparent material applied to lenses to reduce reflection.


Etymology

Origin of antireflection coating

anti- + reflection

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