de sludge
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.
broken 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.
a 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), de-sludged, de-sludg·ing.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source
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Link To de sludge
00:10
De sludge
is always a great word to know.
So is ninnyhammer. Does it mean:
| a fool or simpleton; ninny. |
| the offspring of a zebra and a donkey. |
Collins
World English Dictionary
sludge (slʌdʒ) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —n | |
| 1. | soft mud, snow, etc |
| 2. | any deposit or sediment |
| 3. | a surface layer of ice that has a slushy appearance |
| 4. | (in sewage disposal) the solid constituents of sewage that precipitate during treatment and are removed for subsequent purification |
| [C17: probably related to | |
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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Nearby Words
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