Definition of fog
1a : vapor condensed to fine particles of water suspended in the lower atmosphere that differs from cloud only in being near the groundb : a fine spray or a foam for firefighting
2 : a murky condition of the atmosphere or a substance causing it
3a : a state of confusion or bewilderment spent the morning in a fogb : something that confuses or obscures hid behind a fog of rhetoric
4 : cloudiness or partial opacity in a developed photographic image caused by chemical action or stray radiation
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Examples of fog in a Sentence
Heavy fog made it difficult to see the road.
a climate marked by heavy fogs
The fog reduced visibility to a quarter of a mile.
This problem has me in a fog.
Origin and Etymology of fog
probably back-formation from foggy
First Known Use: 1544
fog
Definition of fog
fogged
;fogging
transitive verb
1 : to cover, envelop, or suffuse with or as if with fog fog the barns with pesticide
2 : to make obscure or confusing accusations which fogged the real issues
3 : to make confused
4 : to produce fog on (something, such as a photographic film) during development
intransitive verb
1 : to become covered or thick with fog
2a : to become blurred by a covering of fog or mistb : to become indistinct through exposure to light or radiation
Examples of fog in a Sentence
The steam from the pot was fogging the window near the stove.
The bathroom was all fogged up after my shower.
politicians who try to fog the issue instead of taking a stand
Circa 1592
First Known Use of fog
circa 1592
FOG Defined for English Language Learners
fog
playDefinition of fog for English Language Learners
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: many small drops of water floating in the air above the ground, the sea, etc.
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: a state of mental confusion
fog
Definition of fog for English Language Learners
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: to cover or fill (something) with small drops of water : to make (something) foggy
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: to become foggy
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: to make (someone or something) confused
FOG Defined for Kids
Definition of fog for Students
1 : tiny drops of water floating in the air at or near the ground
2 : a confused state of mind I woke up in a fog.
Definition of fog for Students
fogged
;fogging
: to cover or become covered with tiny drops of water Steam from the shower fogged the mirror.
Medical Dictionary
fog
playMedical Definition of fog
fogged
;fogging
: to blur (a visual field) with lenses that prevent a sharp focus in order to relax accommodation before testing vision
Learn More about fog
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See words that rhyme with fog Thesaurus: All synonyms and antonyms for fog Spanish Central: Translation of fog Nglish: Translation of fog for Spanish speakers Britannica English: Translation of fog for Arabic speakers Britannica.com: Encyclopedia article about fog
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