The meaning of SLUDGE is mud, mire; especially : a muddy deposit (as on a riverbed) : ooze. How to use sludge in a sentence.

Sludge (possibly from Middle English slutch 'mud, mire', or some dialect related to slush) [1] is a semi-solid slurry that can be produced from a range of industrial processes, from water treatment, …

Nov 21, 2025 · Wastewater treatment - Sludge, Disposal, Treatment: The residue that accumulates in sewage treatment plants is called sludge (or biosolids). Sewage sludge is the solid, semisolid, or …

Sludge is produced during the clarification and filtration process in the water treatment system. There are frequent puddles of coal sludge, and the dust irritates eyes and throats. Only big businesses, not …

Sludge is thick mud, sewage, or industrial waste. More than a million gallons of sludge has seeped into the water.

sludge (slʌdʒ) n. 1. mud, mire, or ooze; slush. 2. a deposit of ooze at the bottom of a body of water. 3. any of various mudlike deposits or mixtures.

Sludge definition: mud, mire, or ooze; slush.. See examples of SLUDGE used in a sentence.

Definition of sludge noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

WordReference Random House Learner's Dictionary of American English © 2025 sludge /slʌdʒ/ n. [uncountable] mud, mire, or ooze; slush. a deposit of ooze at the bottom of a body of water. Civil …

sludge meaning, definition, what is sludge: soft thick mud, especially at the bottom...: Learn more.