English edit

 
ground fog in Germany

Noun edit

ground fog (plural ground fogs)

  1. (weather) A low-lying fog extending only a few feet above ground.
    • 1959 September, Cecil J. Allen, “Locomotive Running Past and Present”, in Trains Illustrated, page 432:
      Ground fog had been hanging about all day, and after leaving Cambridge we had the curious experience of running through quite a thick fog, yet above the top of which most of the signals were clearly visible.

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