sludge
//slʌdʒ//
Noun
sludgeSingular
sludgesPlural
1
Thick, soft, wet mud or a similar viscous mixture of liquid and solid components.
The workers had to remove the sludge from the bottom of the tank.
2
Muddy or slimy sediment or residue, especially from industrial or sewage treatment processes.
The factory must properly dispose of the sludge from its wastewater treatment plant.
3
A heavy, slow-moving mass of ice mixed with water.
The ship had to navigate carefully through the sludge in the harbor.