An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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apochromatism
  اپافامی  
apâfâmi
Fr.: apochromatisme  

The capacity of an optical system to bring three widely separated wavelengths of light into a single focus.

See also: → apochromatic; → -ism.