• WordNet 3.6
    • v fog make less visible or unclear "The stars are obscured by the clouds","the big elm tree obscures our view of the valley"
    • n fog confusion characterized by lack of clarity
    • n fog droplets of water vapor suspended in the air near the ground
    • n fog an atmosphere in which visibility is reduced because of a cloud of some substance
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: The city of Argentia which is located on Newfoundland's southwest coast, is Canada's most fog-bound community. It has 206 days of fog each year.
    • n Fog fŏg (Agric) A second growth of grass; aftergrass.Sometimes called, in New England, old tore. In Scotland, fog is a general name for moss.
    • Fog A state of mental confusion.
    • Fog (Photog) Cloudiness or partial opacity of those parts of a developed film or a photograph which should be clear.
    • Fog To envelop, as with fog; to befog; to overcast; to darken; to obscure.
    • v. t Fog fŏg (Agric) To pasture cattle on the fog, or aftergrass, of; to eat off the fog from.
    • v. i Fog fŏg To practice in a small or mean way; to pettifog. "Where wouldst thou fog to get a fee?"
    • Fog (Photog) To render semiopaque or cloudy, as a negative film, by exposure to stray light, too long an exposure to the developer, etc.
    • v. i Fog (Photog) To show indistinctly or become indistinct, as the picture on a negative sometimes does in the process of development.
    • Fog Watery vapor condensed in the lower part of the atmosphere and disturbing its transparency. It differs from cloud only in being near the ground, and from mist in not approaching so nearly to fine rain. See Cloud.
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: Fog and a cloud are the same thing, only at different altitudes. Fog is simply a cloud lying on the earth, while clouds are fog floating in the sky.
    • n fog The aggregation of a vast number of minute globules of water in the air near the earth's surface, usually produced by the cooling of the air below the dew-point, whereby a portion of its vapor is condensed. The cooling may be the result of radiation, conduction, mixture with colder air, or ascension. Over surfaces of water warmer than the air the fog produced by cooling is increased by the continued evaporation of the water into the already saturated air. Solid particles in the air constitute nuclei for condensation, and are thereby great promoters of the formation of fog. In a ship's log-book, abbreviated feminine
    • n fog Hence A state of mental obscurity or confusion: as, to be in a fog of doubt.
    • n fog In photography, a uniform coating covering a developed plate, more or less destructive to the picture in proportion to its opacity. It results from chemical impurities, from exposure of the sensitized film to light, from errors in manipulation, etc.
    • fog To envelop with or as with fog; shroud in mist or gloom; obscure; befog.
    • fog To cloud or coat with a uniform coating or discoloration, as in photography: as, an over-alkaline developer will fog the plate. see fog, n., 3.
    • fog To become covered or filled with fog.
    • fog In photography, to become clouded or coated with a uniform coating or discoloration: said of a negative in course of development. See fog, n., 3.
    • n fog Aftergrass; a second growth of grass; aftermath; also, long grass that remains on land through the winter; foggage.
    • n fog Moss.
    • fog To feed off the fog or pasture in winter: as, to fog cattle.
    • fog To eat off the fog from: as, to fog a field.
    • fog To become covered with fog or moss.
    • fog To seek gain by base or servile practices (whence pettifogger).
    • fog Gross; fat; clumsy.
    • n fog An atmospheric haze due to the presence of fine solid matter, such as dust or fine soot from soft coal fires or ashes from forest and prairie fires. These carbon particles collect about themselves special atmospheres of aqueous vapor and other gases. The spectrum of the transmitted light shows only the red and ultra-red waves. As the upper layers of the dry fog cool off by radiation and the little atmospheres of vapor become water, the dry fog changes to a drizzling mist and often to steady rain. Prairie fires and the resultant dry fog are mentioned by Marco Polo in his travels in India.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: A "pogonip" is a heavy winter fog containing ice crystals.
    • n Fog fog a thick mist: watery vapour rising from either land or water
    • v.t Fog to shroud in fog
    • v.i Fog to become coated with a uniform coating
    • n Fog fog grass which grows in autumn after the hay is cut:
    • v.i Fog to become covered with fog
    • n Fog fog (Scot.) moss
    • ***


  • Emily Dickinson
    “Let us go in; the fog is rising.”
  • H.G. Wells
    “The science hangs like a gathering fog in a valley, a fog which begins nowhere and goes nowhere, an incidental, unmeaning inconvenience to passers-by.”
  • Emily Dickinson
    “The fog is rising.”
  • Charles Caleb Colton
    “Mystery magnifies danger, as a fog the sun, the hand that warned Belshazzar derived its horrifying effect from the want of a body.”
  • Claude A. Helvetius
    Claude A. Helvetius
    “Truth is a torch that shines through the fog without dispelling it.”


In a fog - If you're in a fog, you are confused, dazed or unaware.


Webster's Revised Unabridged Dictionary
Dan. sneefog, snow falling thick, drift of snow, driving snow, cf. Icel. fok, spray, snowdrift, fjūk, snowstorm, fjūka, to drift
Chambers's Twentieth Century Dictionary
Origin unknown; W. ffwg, dry grass, is borrowed.


In literature:

At once the two natives bent to their oars, and the dory slipped away into the fog.
"The Young Alaskans" by Emerson Hough
As for fogs lastin', I reckon, little Miss, there won't be no more sunshine 'twixt here and Yarmouth harbor.
"Dorothy's Travels" by Evelyn Raymond
He was usually a silent man, at home in the ice and the clammy fog, but not a great acquisition in the saloon.
"Masters of the Wheat-Lands" by Harold Bindloss
The fog of the great bank of Newfoundland is caused by the near proximity of warm and cold waters.
"The Sailor's Word-Book" by William Henry Smyth
Through the dense folds of the fog the vague faces of the spectators showed an intent expression.
"A Son of Hagar" by Sir Hall Caine
We might get caught in terrible storms; we might get into fogs, and as we have no compass there we should lie, not knowing which way to go.
"Condemned as a Nihilist" by George Alfred Henty
Boy kin lose hisself f'm a bloodhoun' easy in de fog.
"Lady Luck" by Hugh Wiley
Outside the fog was so thick that the two men hesitated.
"The Secret House" by Edgar Wallace
You are wrong when you say that a searchlight cannot penetrate fog.
"The Grain Ship" by Morgan Robertson
It was not really heavy, and I had to go first, as the station was pretty full in that part, in spite of the fog.
"Peterkin" by Mary Louisa Molesworth

In poetry:

Then the sea-fog veils
The ships and their sails;
Queen Sigrid the Haughty,
Thy vengeance prevails!
"Tales Of A Wayside Inn : Part 1. The Musician's Tale; The Saga of King Olaf XVIII. -- King Olaf And " by Henry Wadsworth Longfellow
On passed the bark in safety
Round isle and headland steep;
No tempest broke above them,
No fog-cloud veiled the deep.
"The Exiles. 1660" by John Greenleaf Whittier
Do you remember Etajima,
And how, upon a moon-fogged sea,
As ghostly as ever a tide shall be,
We passed an island silently?
"A Word’s Magic" by Cale Young Rice
The moon swagged in the air.
Out of the mist a girl tossed
Spittle of song; a hoarse light
Spattered the fog with heavy hair.
"Light" by Allen Tate
Now March was gone, came April in,
And a sea-fog settled down,
And forth sailed he on a glassy sea,
He sailed from Plymouth town.
"Winstanley" by Jean Ingelow
Is it to see the sea-fog lift
From the broad bases of the hills,
Or the red moonlight's golden drift,
That her soft bosom thrills?
"Helva" by Alice Cary

In news:

Patchy fog before 10am.
Patchy fog this morning around Montgomery, but otherwise mostly sunny with highs near 83 and lows around 60.
Patchy fog before 11am.
Patchy fog overnight starting after 1 am (NOAA).
Beware of patchy fog after 1 am that will continue overnight until 8 am tomorrow morning.
Friday's weather: Sunny and warmer with some patchy fog early and late.
High pressure is allowing clouds to thicken over north Alabama so expect patchy fog through the morning and an overnight low of 56 degrees, according to the Huntsville office of the National Weather Service.
Expect clouds and patchy fog this morning before it warms up.
Patchy fog is also possible before 10 am in sheltered and valley areas and near water.
Patchy fog leads to sunny day, foggy night in Birmingham.
Patchy fog before 9am.
Expect patchy fog late tonight, early Thursday.
Prepare for patchy fog before 9 am Thursday.
Drivers should be prepared this morning to see areas of patchy fog, although not as bad as Tuesday morning.
Patchy , shallow fog Friday morning.

In science:

It is quite surprising to remark, then, that the mutual relationship between the two theories is still clouded by some fog that needs to be completely dissipated.
Interpreting solutions with nontrivial Killing groups in general relativity
Most investigations of higher order gravity have focused on Fourth Order Gravity (FOG), i.e., on gravitational Lagrangians in which the corrections are at most of order four in the metric, and in what follows we will also focus on these models.
On Shear-free perturbations of f(R) gravity
Because the field equations resulting from FOG are highly nonlinear, difficult conceptual and technical issues arise which need to be resolved in order to uncover the detailed physics of these models.
On Shear-free perturbations of f(R) gravity
Of particular importance is to understand the relationship between the Newtonian and Relativistic limits of FOG which is important in describing the dynamics of nonlinear fluid flows in such theories.
On Shear-free perturbations of f(R) gravity
It is therefore interesting to ask whether such a result holds in the more general setting of FOG.
On Shear-free perturbations of f(R) gravity