| 释义 |
WordReference Random House Learner's Dictionary of American English © 2024scum /skʌm/USA pronunciation n. [uncountable]- a layer of matter on the surface of a liquid:pond scum.
- low, worthless people:Those gangsters are truly the scum of the earth.
scum•my, adj., -mi•er, -mi•est. WordReference Random House Unabridged Dictionary of American English © 2024scum (skum),USA pronunciation n., v., scummed, scum•ming. n. - a film or layer of foul or extraneous matter that forms on the surface of a liquid.
- refuse or offscourings.
- a low, worthless, or evil person.
- such persons collectively;
riffraff;
dregs. - Metallurgyscoria (def. 1).
v.t. - to remove the scum from.
- to remove as scum.
v.i. - to form scum;
become covered with scum.
- Middle Dutch schūme (Dutch schuim) foam; cognate with German Schaum foam
- Middle English scume 1200–50
Collins Concise English Dictionary © HarperCollins Publishers:: scum /skʌm/ n - a layer of impure matter that forms on the surface of a liquid, often as the result of boiling or fermentation
- the greenish film of algae and similar vegetation surface of a stagnant pond
Also called: dross, scruff the skin of oxides or impurities on the surface of a molten metal- waste matter
- a worthless person or group of people
vb (scums, scumming, scummed)- (transitive) to remove scum from
- (intransitive) rare to form a layer of or become covered with scum
Etymology: 13th Century: of Germanic origin; related to Old High German scūm, Middle Dutch schūm, Old French escume; see skim |