单词 | apochromatic |
释义 | apochromatic (once / 1969886 pages) adj WORD FAMILY apochromatic USAGE EXAMPLESIn consequence of its low refractive and dispersive power, colourless pellucid fluor-spar is valuable in the construction of apochromatic lenses, but this variety is rare. Various, Encyclopaedia Britannica, 11th Edit...(2011) adj corrected for both chromatic and spherical aberration an apochromatic lens Syn corrected having something undesirable neutralized |
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