액체의 표면에 뜨는 불순물, 찌꺼기, 더껑이 또는 거품 층.
예문:
"The surface of the abandoned pond was covered in a thick layer of green scum."
"Carefully skim the white scum off the top of the boiling soup."
도덕적으로 비열하거나 가치 없다고 여겨지는 사람 혹은 집단을 비하하여 이르는 말.
예문:
"Those who exploit the elderly are the absolute scum of society."
"He spat at his captors, calling them cowardly scum."
액체 표면에 찌꺼기가 생기게 하거나, 혹은 그 찌꺼기를 걷어내다.
예문:
"The stagnant water in the tank quickly scummed over in the heat."
"The worker was responsible for scumming the molten metal in the vat."