Dictionary.com

sludge

[ sluhj ]
/ slʌdʒ /
Save This Word!

noun

QUIZZES

QUIZ YOURSELF ON AFFECT VS. EFFECT!

In effect, this quiz will prove whether or not you have the skills to know the difference between “affect” and “effect.”
Question 1 of 7
The rainy weather could not ________ my elated spirits on my graduation day.

Origin of sludge

First recorded in 1640–50; variant of dialectal slutch, slitch,Middle English slich “slime, wet mud” (compare its derivative slucched “muddy”); apparently of expressive origin
de-sludge, verb (used with object), de-sludged, de-sludg·ing.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

British Dictionary definitions for sludge

sludge
/ (slʌdʒ) /

noun

soft mud, snow, etc
any deposit or sediment
a surface layer of ice that has a slushy appearance
(in sewage disposal) the solid constituents of sewage that precipitate during treatment and are removed for subsequent purification
C17: probably related to slush
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Learning At Home Just Got Easier!