An Etymological Dictionary of Astronomy and Astrophysics

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فرهنگ ریشه‌شناختی اخترشناسی-اخترفیزیک

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crater floor
  کف ِ لاوک  
kaff-e lâvak
Fr.: sol de cratère  

The lower part of an → impact crater bounded by the rising
→ crater rim.

See also: → crater; → floor.