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.

noun

clearness , cognizance , understanding

verb

clear up , explain

noun

brume , cloud , effluvium , film , gloom , grease , ground clouds , haze , london fog , miasma , murk , murkiness , nebula , obscurity , pea soup , smaze , smog , smoke , smother , soup * , steam , vapor , visibility zero-zero , wispnotes:haze is atmospheric moisture or dust or smoke that causes reduced visibility while fog is droplets of water vapor suspended in the air near the ground causing reduced visibility , befuddlement , blindness , confusion , daze , maze , mist , muddledness , muddlement , perplexity , stupor , trance , vaguenessnotes:haze is atmospheric moisture or dust or smoke that causes reduced visibility while fog is droplets of water vapor suspended in the air near the ground causing reduced visibility , bewilderedness , bewilderment , discombobulation , muddle , mystification , puzzlement , stupefaction , confusion (of the mind) , uncertainty , whiteout

verb

addle , becloud , bedim , befuddle , bewilder , blind , blur , cloud , confuse , darken , daze , dim , eclipse , mist , muddy , mystify , obfuscate , perplex , puzzle , steam up , stupefynotes:haze is atmospheric moisture or dust or smoke that causes reduced visibility while fog is droplets of water vapor suspended in the air near the ground causing reduced visibility , befog , blear , dull , gloom , overcast , overshadow , shadow , bewilderment , brume , cloudiness , confusion , film , grass , haze , moisture , murk , nebula , obscure , smog , stream , stupor , vapor , vaporize , whiteout