| 单词 | achromat |
| 释义 | achromat[ ak-ruh-mat ] / ˈæk rəˌmæt / nounachromatic lens. Origin of achromatFirst recorded in 1905–10; by shortening Words nearby achromatachrestic anemia, Christmas Carol, A, achroite, achromacyte, achromasia, achromat, achromate, achromatic, achromatic colour, achromaticity, achromatic lens Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for achromatachromat / (ˈækrəˌmæt) / nounAlso called: achromatic lens a lens designed to bring light of two chosen wavelengths to the same focal point, thus reducing chromatic aberrationCompare apochromat a person who has no colour vision at all and can distinguish only black, white, and grey. The condition is very rare Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012 |
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