Found in the following dictionaries
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)
"Sludging" Definition
noun
In hydraulic engineering, the operation of filling the cracks caused by the contraction of clay in embankments with mud sufficiently wet to run freely.
Source: Century Dictionary
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