fog over

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fog over

To become obscured by fog. My glasses fogged over while I was in the shower—I can't see a thing!
See also: fog, over
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

fog over

[for something made of glass] to become covered over with water vapor. The windshield fogged over because I forgot to turn on the defroster. The mirror fogged over, and I couldn't see to shave.
See also: fog, over
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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References in periodicals archive ?
Its development is strongly influenced by surface conditions, soil cover for fogs over land, and sea state for fogs at sea.
The Meso-NH has been successfully used in simulation of fogs over different regions, for example, Cuxart and Jimenez [14] over the Ebro river basin, Spain [14], Bari et al.