- (especially British English)
something of very low quality; the least valuable part of something 劣质品；糟粕 mass-produced dross 成批生产的劣质品 The well-written dialogue separates this film from the usual teenage dross. 精心撰写的对话将这部电影与一般的劣质青春片区分开来。 He considered the working class to be the dross of society. 他认为工人阶级是社会的渣滓。
- (specialist)
a waste substance, especially that separated from a metal when it is melted 废料；（尤指金属熔化的）浮渣 The fire burns away the dross leaving the pure metal. 火烧掉了渣滓，留下了纯金属。
Word OriginOld English drōs (in the sense ‘scum on molten metal’); related to Dutch droesem and German Drusen ‘dregs, lees’.