单词	achromaticity
释义	achromaticity noun ach·​ro·​ma·​tic·​i·​ty ˌa-krə-məˈtisətē, ˌā- plural -es 1 : the quality or state of being achromatic (as grayness of a color) 2 : degree of being achromatic Word History First Known Use 1821, in the meaning defined at sense 1
随便看	astronia astroniums astronomer Astronomer Royal astronomer's staff astronomers astronomers royal astronomic astronomical astronomical clock astronomical coordinate astronomical geography astronomical latitude astronomical telescope astronomical time astronomical triangle astronomical twilight astronomical unit astronomically astronomies astronomise astronomised astronomises astronomising astronomize

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