sludge
Solids separated from suspension in a liquid.
Other meanings
A residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.
A sediment of accumulated minerals in a steam boiler.
Related words
- antisludge
- biosludge
- desludge
- mudge
- sludgelike
- sludgemaker
- sludger
- sludgy
- activated sludge
- oil sludge
- sludgecore
- sludge metal
Word history
From Middle English "slugge".
Where this comes from
This definition is adapted from “sludge” on Wiktionary, by its contributors, published under CC BY-SA 4.0. This page is published under the same licence.