achromat

[ ak-ruh-mat ]
/ ˈæk rəˌmæt /

noun

achromatic lens.

Origin of achromat

First recorded in 1905–10; by shortening

Words nearby achromat

achoo, achrestic anemia, achroite, achromacyte, achromasia, achromat, achromate, achromatic, achromatic colour, achromatic lens, achromatic objective

British Dictionary definitions for achromat

achromat
/ (ˈækrəˌmæt) /

noun

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