sludge

IPA: sɫˈʌdʒ

Solids separated from suspension in a liquid.
A residual semi-solid material left from industrial, water treatment, or wastewater treatment processes.
A sediment of accumulated minerals in a steam boiler.
A mass of small pieces of ice on the surface of a water body.
(uncountable, music) sludge metal
(emergency medicine, mnemonic) An acronym used to help remember the common symptoms of certain affections of a cholinergic toxidrome: "salivation, lacrimation, urination, defecation, gastrointestinal upset, emesis".

Examples of "sludge" in Sentences

According to MAL, at least 95 percent of the sludge is still in the reservoir.
The red sludge is a byproduct of bauxite, a material used in manufacturing aluminum.
The sludge is so corrosive that it has burned people as it seeped through their clothing.
The red sludge is a byproduct of processing bauxite, a basic material for manufacturing aluminum.
Red sludge is a byproduct of the refining of bauxite into alumina, the basic material for manufacturing aluminum.
Treated sludge is often stored in ponds where the water eventually evaporates, leaving behind a largely safe red clay.
It's pretty funny how Maureen "sludgenurse" Reilly just constantly uses the term sludge over and over, along with all sorts of standard alarmist tactics in "arguing" her point.
However, the sludge is then put into Giant Vats where anarobic bacteria (through their metabolism) break down the sludge and forms the methane. this methane is then collected and used to generate power for the Sewage treatment plant.