Scum vs Sludge - What's the difference?
scum | sludge |
(uncountable) A layer of impurities that accumulates at the surface of a liquid (especially molten metal or water).
(uncountable) A greenish water vegetation (such as algae), usually found floating on the surface of ponds
The topmost liquid layer of a cesspool or septic tank.
(uncountable, slang, chiefly US) semen
(countable, derogatory, slang) A reprehensible person or persons.
(countable, derogatory, slang) police officer(s)
To remove the layer of scum from (a liquid etc.).
To remove (something) as scum.
*1590 , Edmund Spenser, The Faerie Queene , II.vii:
*:Some scumd the drosse, that from the metall came; / Some stird the molten owre with ladles great.
To become covered with scum.
*1769 , Elizabeth Raffald, The Experienced English House-keeper , pp.321-322:
*:Take the smallest Cucumbers you can get, and as free from Spots as possible, put them into a strong Salt and Water for nine or ten Days, or 'till they are quite Yellow, and stir them twice a Day at least, or they will scum over, and grow soft
(obsolete) To scour (the land, sea etc.).
*:
*:SOo by Merlyns aduys ther were sente fore rydars to skumme the Countreye / & they mette with the fore rydars of the north / and made hem to telle whiche wey the hooste cam / and thenne they told it to Arthur / and by kyng Ban and Bors counceill they lete brenne and destroye alle the contrey afore them there they shold ryde
*Milton
*:Wandering up and down without certain seat, they lived by scumming those seas and shores as pirates.
(obsolete) To gather together, as scum.
*1815 , Rudolf Ackerman and Frederic Shoberl, The Repository of Arts, Literature, Commerce, Manufactures, Fashions and Politics :
*:A great majority of the members are scummed together from the Jacobinical dregs of former periods of the revolution.
To startscum or savescum.
A generic term for solids separated from suspension in a liquid.
* {{quote-magazine, date=2013-06-29, volume=407, issue=8842, page=28, magazine=(The Economist)
, title= 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 body of water.
(uncountable, music) sludge metal
(informal) to slump or slouch.
to slop or drip slowly.
As nouns the difference between scum and sludge
is that scum is a layer of impurities that accumulates at the surface of a liquid (especially molten metal or water) while sludge is a generic term for solids separated from suspension in a liquid.As verbs the difference between scum and sludge
is that scum is to remove the layer of scum from (a liquid etc.) while sludge is to slump or slouch.As an initialism SLUDGE is
a mnemonic ("salivation, lacrimation, urination, defecation, gastrointestinal upset, emesis") used to identify the common symptoms of certain affections of a cholinergic toxidrome.scum
English
Alternative forms
* (l)Noun
Synonyms
* (layer of impurities) dross, impurities * (layer of impurities on molten metal) cinder, scoriae, slag * (person considered reprehensible) bastardVerb
(scumm)Anagrams
* *sludge
English
(wikipedia sludge)Noun
High and wet, passage=Floods in northern India, mostly in the small state of Uttarakhand, have wrought disaster on an enormous scale.