- a cloudlike mass or layer of minute water droplets or ice crystals near the surface of the earth, appreciably reducing visibility.Compare ice fog, mist, smog.
- any darkened state of the atmosphere, or the diffused substance that causes it.
- a state of mental confusion or unawareness; daze; stupor: The survivors were in a fog for days after the catastrophe.
- Photography. a hazy effect on a developed negative or positive, caused by light other than that forming the image, by improper handling during development, or by the use of excessively old film.
- Physical Chemistry. a mixture consisting of liquid particles dispersed in a gaseous medium.
- to cover or envelop with or as if with fog: The steam in the room fogged his glasses.
- to confuse or obscure: The debate did little else but fog the issue.
- to bewilder or perplex: to fog the mind.
- Photography. to produce fog on (a negative or positive).
- to become enveloped or obscured with or as if with fog.
- Photography. (of a negative or positive) to become affected by fog.
Origin of fog1
SynonymsSee more synonyms for on Thesaurus.com
- a second growth of grass, as after mowing.
- long grass left standing in fields during the winter.
Origin of fog2
Examples from the Web for fog
A fog of conspiracy—of logic against logic, as Orwell put it—has descended on every major event in the war.Digital Doublethink: Playing Truth or Dare with Putin, Assad and ISIS
Christopher Dickey, Anna Nemtsova
November 16, 2014
So we changed that into a fog machine blast right before I go on.Oscars Host Neil Patrick Harris on His Best and Worst Emcee Moments (VIDEO)
Neil Patrick Harris
October 15, 2014
“Our main job is to come in there, cut through the fog of war, and establish what has happened,” said Solvang.'E-Team': James Foley's Last Film
August 21, 2014
I was just myself again—the person I was meant to be, without the fog.We're Talking About Depression All Wrong
August 20, 2014
At Henley, the other vaporium, the crew lying around on settees and filling the room with fog brought back Dutch flashbacks.This Is Your E-Cigarette on Drugs
July 28, 2014
The frolic with the child seemed to have blown away a fog from between them.The Spenders
Harry Leon Wilson
Meantime a white film of fog spread down the bay from the northward.Malbone
Thomas Wentworth Higginson
He had seen something like a heavy flash of lightning in the fog.The Secret Agent
Major Jelles looked meditatively at me, through his fog of smoke.In the Valley
Then he asked me, still at the window, "What's that fog doing now?"Questionable Shapes
William Dean Howells
- a mass of droplets of condensed water vapour suspended in the air, often greatly reducing visibility, corresponding to a cloud but at a lower level
- a cloud of any substance in the atmosphere reducing visibility
- a state of mental uncertainty or obscurity
- photog a blurred or discoloured area on a developed negative, print, or transparency caused by the action of extraneous light, incorrect development, etc
- a colloid or suspension consisting of liquid particles dispersed in a gas
- to envelop or become enveloped with or as if with fog
- to confuse or become confusedto fog an issue
- photog to produce fog on (a negative, print, or transparency) or (of a negative, print, or transparency) to be affected by fog
- a second growth of grass after the first mowing
- grass left to grow long in winter
Word Origin and History for fog
"thick, obscuring mist," 1540s, probably from a Scandinavian source akin to Danish fog "spray, shower, snowdrift," Old Norse fok "snow flurry," fjuk "snow storm." Cf. also Old English fuht, Dutch vocht, German Feucht "moist." Figurative phrase in a fog "at a loss what to do" first recorded c.1600.
"long grass," c.1300, probably of Scandinavian origin, cf. Norwegian fogg "long grass in a moist hollow," Icelandic fuki "rotten sea grass." The connection to fog (n.1), via a notion of long grass growing in moist dells of northern Europe, is tempting but not proven. Watkins suggests derivation from PIE *pu- "to rot, decay."
1590s, from fog (n.1). Related: Fogged; fogging.
- A dense layer of cloud lying close to the surface of the ground or water and reducing visibility to less than 1 km (0.62 mi). Fog occurs when the air temperature becomes identical, or nearly identical, to the dew point.
- An opaque or semiopaque condensation of a substance floating in a region or forming on a surface.
Idioms and Phrases with fog
see in a fog.