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1. a colloid system in which the dispersion medium is a gas and the dispersed particles are liquid.
2. an artifact seen on a radiograph caused by unintentional exposure to reducing contrast.


(fog) a colloid system in which the dispersion medium is a gas and the disperse particles are liquid.


Droplets dispersed in the atmosphere or a respiratory device.


Abbreviation for freezing of gait.

light fog

(līt fawg)
Black areas seen on a radiograph when a film is exposed to white light before processing.
Synonym(s): fog.

fog (fogging),

fog, chemical,
n See film fault.
fog, dyschroic,
fog, light,
n See film fault.
fog, radiation,
n the film darkening caused by radiation from sources other than intentional exposure to the primary beam; e.g., film may be exposed to scatter radiation, or accidental exposure may occur if stored film is not protected from radiation.


1. a colloid system in which the dispersion medium is a gas and the dispersed particles are liquid.
2. regrowth after harvesting of a cereal crop. Called also aftermath, feg.
3. obscuring opacity on an x-ray film.

basic fog
blackening of an unexposed x-ray film after development.
x-ray fog
local or general exposure to extraneous radiation, light or chemical action which is additional to the true photographic image. Leads to spoiling of the x-ray image.

Patient discussion about fog

Q. In what way the brain fog symptom associated with fibromyalgia? In what way the brain fog symptom associated with fibromyalgia? What are the other symptoms of fibromyalgia?

A. memory loss is also associated with Fibromyalgia...lack of concentration and you just feel like you are in a fog...can't remember....can't think. Our standing joke at my house is "I am in the "fog" today. The one thing my doctor ALWAYS reminds me of fibro affects people differently, remember you may not have all the sympoms or you may have ones others don't but fibromyalgia is widespread pain that has lasted 3 months or more, it is pain of the fibrous tissue - ligiments, tendons and muscles. You feel stiff and achy all over. There are trigger points such as neck, shoulders, spine and hips. Chronic fatigue taht is possibly related to the disturbed sleep patterns. Most suffers I have talked to have restless leg syndrome and headaches. Irritable bowl is associated but on that one I am lucky I haven't had the problem but have had swolling problems and vision problems...I hope this helps. Good Luck!

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References in periodicals archive ?
TM)] Household Fogger kill indicated pests in the home, while Advantage[sup.
While receiving the gift of three fogger machines from the South Korean Commercial attache, Khalil Tahir Sindhu said that Punjab government believes in relations instead of donation.
The Sentinel room Fogger can decontaminate a 200 cubic metre room in about 60 minutes and the room can be evacuated using the HVAC system or allowed to dwell overnight and naturally dissipate.
Fogger said that the first step to protect against the negative impacts of stress is to exercise.
In her experiments, Jones found that even two hours of direct exposure to the insect fogger was not enough to kill most of the urban bed bugs.
Fogger is more likely to get into the attacker's eyes in a fast-breaking situation because of its wide dispersal, but it has a short range and doesn't work well in high winds.
Originally, the fogger was designed as a humidifier and fungicide applicator for produce in storage.
The Sanosil Halo[TM] Fogger, designed for Sanosil International of New Castle, DE, is a unique device that transforms Sanosil non-toxic disinfectant into a fine mist of ionized particles, and distributes it throughout a room disinfecting every exposed surface, including the surfaces that regular cleaning can't reach.
To a question, he said the World Bank had provided the local government department with 500 fogger machines, 1000 spray pumps and 2,100 protective uniform kits for the spray staff.
Mace sprays are a household name and come in many different styles, from hand weights with built-in pepper spray for joggers, to fogger units that contain a combination of tear gas, pepper spray and UV-marking dye.
While the fogger applies sugar esters in an effective manner, 'current processing and production practices have been too expensive to make growing plants for their esters feasible commercially,' says Jackson.
Hot Shot([R]) Bedbug & Flea Fogger *-- Perfect for treating an entire room in your home.