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View synonyms for
sludge
[ sluhj ]
noun
- mud, mire, or ooze; slush.
- a deposit of ooze at the bottom of a body of water.
- any of various more or less mudlike deposits or mixtures.
- the sediment in a steam boiler or water tank.
- broken ice, as on the sea.
- a mixture of some finely powdered substance and water.
- sediment deposited during the treatment of sewage.
- Also called activated sludge. Bacteriology. sewage sediment that contains a heavy growth of microorganisms, resulting from vigorous aeration.
- a fine, mudlike powder produced by a mining drill.
sludge
/ ʌ /
noun
- soft mud, snow, etc
- any deposit or sediment
- a surface layer of ice that has a slushy appearance
- (in sewage disposal) the solid constituents of sewage that precipitate during treatment and are removed for subsequent purification
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Other 51Թ Forms
- -ܻ岵 verb (used with object) desludged desludging
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51Թ History and Origins
Origin of sludge1
First recorded in 1640–50; variant of dialectal slutch, slitch, Middle English slich “slime, wet mud” (compare its derivative slucched “muddy”); apparently of expressive origin
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51Թ History and Origins
Origin of sludge1
C17: probably related to slush
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Example Sentences
Examples have not been reviewed.
And data analysed by the BBC and shared with the UK's Department for Transport casts further doubt on one of the key ingredients in HVO, a material called palm sludge waste.
From
They gave that reactionary sludge a fresh coat of populist paint and found that it resonated with a large chunk of the American public.
From
The remains of burned homes and vehicles along the scenic coastal stretch were caked in a layer of sludge.
From
Back at the plant I'm looking at an unappetising green sludge.
From
Do not use a garden hose to soak the ash because you’ll just create a toxic sludge.
From
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