| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024sludge /slʌdʒ/USA pronunciation n. [uncountable]- mud, mire, or ooze;
slush. - a deposit of ooze at the bottom of a body of water.
- Civil Engineeringthe substance left over after treating sewage.
WordReference Random House Unabridged Dictionary of American English © 2024sludge (sluj),USA pronunciation n. - 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.
- Energythe sediment in a steam boiler or water tank.
- Oceanographybroken ice, as on the sea.
- a mixture of some finely powdered substance and water.
- Civil Engineeringsediment deposited during the treatment of sewage.
- MicrobiologyAlso called activated sludge. [Bacteriol.]sewage sediment that contains a heavy growth of microorganisms, resulting from vigorous aeration.
- Mininga fine, mudlike powder produced by a mining drill.
- 1640–50; variant of dialect, dialectal slutch, slitch, Middle English slich slime, wet mud (compare its derivative slucched muddy); apparently of expressive origin, originally
Collins Concise English Dictionary © HarperCollins Publishers:: sludge /slʌdʒ/ n - 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
Etymology: 17th Century: probably related to slush |