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achromat

[ ak-ruh-mat ]

achromat

/ ˈækrəˌmæt /

noun

  1. See apochromat
    Also calledachromatic lens a lens designed to bring light of two chosen wavelengths to the same focal point, thus reducing chromatic aberration Compare apochromat
  2. a person who has no colour vision at all and can distinguish only black, white, and grey. The condition is very rare

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Word History and Origins

Origin of achromat1

First recorded in 1905–10; by shortening

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