| scum |
layer of impurities formed on the surface when sugar is heated - mechanical impurities such as dust and dirt. in the early years, extracted using bullock's blood / albumen which entangled most of the impurities floating in the solution and raised them to the surface in the form of a thick scum, which was carefully removed.
출처: www.mawer.clara.net/glossary.html
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| scum |
is septic wastes such as grease and fat that floats to the top of the tank.
출처: www.boxerwood.com/Newts/glossary.htm
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| scum |
(noun) [Middle English, from Middle Dutch schum; akin to Old High German scum foam] First appeared 14th Century 1 a : extraneous matter or impurities risen to or formed on the surface of a liquid often as a foul filmy covering b : the scoria of metals in a molten state : DROSS c : a slimy film on a solid or gelatinous object 2 a : REFUSE b : a low, vile, or worthless person or group of people -- scum*my (adjective)
출처: www.contecult.com/glossary.htm
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