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antireflection coating

[an-tee-ri-flek-shuh n, 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.
Origin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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