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noun
1.
mud, mire, or ooze; slush.
2.
a deposit of ooze at the bottom of a body of water.
3.
any of various more or less mudlike deposits or mixtures.
4.
the sediment in a steam boiler or water tank.
5.
EXPANDbroken ice, as on the sea.
6.
a mixture of some finely powdered substance and water.
7.
sediment deposited during the treatment of sewage.
8.
Also called activated sludge. Bacteriology. sewage sediment that contains a heavy growth of microorganisms, resulting from vigorous aeration.
9.
COLLAPSEa fine, mudlike powder produced by a mining drill.
Origin:
1640–50; variant of dial. slutch, slitch, Middle English slich slime, wet mud (compare its derivative slucched muddy); apparently of expressive orig.
1640–50; variant of dial. slutch, slitch, Middle English slich slime, wet mud (compare its derivative slucched muddy); apparently of expressive orig.
Related forms
de-sludge, verb (used with object), -sludged, -sludg·ing.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Based on the Random House Dictionary, © Random House, Inc. 2012.
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Sludge
is always a great word to know.
So is zedonk. Does it mean:
| a chattering or flighty, light-headed person. |
| the offspring of a zebra and a donkey. |
Collins
World English Dictionary
Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline
Word Origin & History
sludge
1649, possibly from M.E. slutch "mud, mire," or a variant of slush.
Online Etymology Dictionary, © 2010 Douglas Harper
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