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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
Other Word Forms
- de-sludge verb (used with object)
Word History and Origins
Origin of sludge1
Word History and Origins
Origin of sludge1
Example Sentences
Successive governments have failed to deal with the threat posed by spreading sewage sludge containing toxic chemicals on farmers' fields, a former chair of the Environment Agency has told the BBC.
The trick is knowing the sauce’s nature: it's velvet, not sludge.
When he and his son walked upstream, they found "black sludge" emerging from an outlet pipe below the airport's holding ponds.
The Boring Company initially planned to dump wastewater in the nearby Colorado River but, after local pressure, signed a deal to send the sludge to a Bastrop wastewater treatment plant.
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.
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