sludge

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English[edit]

Etymology[edit]

Possibly related to slush.

Pronunciation[edit]

Noun[edit]

sludge (countable and uncountable, plural sludges)

  1. A generic term for solids separated from suspension in a liquid.
    • 2013 June 29, “High and wet”, The Economist, volume 407, number 8842, page 28: 
      Floods in northern India, mostly in the small state of Uttarakhand, have wrought disaster on an enormous scale. [] Rock-filled torrents smashed vehicles and homes, burying victims under rubble and sludge.
  2. A residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.
  3. A sediment of accumulated minerals in a steam boiler.
  4. A mass of small pieces of ice on the surface of a body of water.
  5. (uncountable, music) sludge metal

Synonyms[edit]

Derived terms[edit]

Translations[edit]

Verb[edit]

sludge (third-person singular simple present sludges, present participle sludging, simple past and past participle sludged)

  1. (intransitive, informal) to slump or slouch.
  2. (intransitive) to slop or drip slowly.