Sludge

Pronunciation

• Rhymes: -ÊŒdÊ’

Origin

Possibly related to slush.

Full definition of sludge

Noun

1. A generic term for solids separated from suspension in a liquid.
• 2013-06-29, High and wet, 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

• (separated solids) mud, mire, ooze, slush

Derived terms

• activated sludge
• oil sludge
• sludge metal
• sludgecore

Verb

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