Wiktionary
n. A dense fog that consists of fine particles of ice.
WordNet
n. a dense winter fog containing ice particles [syn: pogonip]
Wikipedia
Ice fog is a type of fog consisting of fine ice crystals suspended in the air. It occurs only in cold areas of the world, as water droplets suspended in the air can remain liquid down to . It should be distinguished from diamond dust, a precipitation of sparse ice crystals falling from a clear sky. It should also be distinguished from freezing fog, which is commonly called pogonip in the western United States.
Usage examples of "ice fog".
And now two days of dismal beating about in one place await for Fafhrd, with the cold increasing steadily until, this midnight, clear skies had given way to the ice fog in which _Flotsam_ lay becalmed.
The bonsai trees and fell fields looked ancient and unreal in the shifting ice fog, the dark limbs and branches dripping on our heads when they suddenly loomed out of the mist.
It is too near absolute darkness down there to see by light amplification or infrared, and she has not brought a flashlight, but she opens her mouth, and a brilliant beam of yellow light illuminates the tunnel and ice fog ahead of her.
The snow fell in fine white sheets, like an ice fog, around the covered crystal-thrower as Hyalas checked the lashings on the tarp that covered both device and the wagon that held it.