An example of dross is what is left over after separating reusable, compostable and recyclable items from the garbage.
- a scum formed on the surface of molten metal
- waste matter; worthless stuff; rubbish
Origin of drossMiddle English and Old English dros, dregs, akin to Old Norse dregg, dregs
- Waste or impure matter: discarded the dross after recycling the wood pulp.
- The scum that forms on the surface of molten metal as a result of oxidation.
- Worthless, commonplace, or trivial matter: “He was wide-awake and his mind worked clearly, purged of all dross” ( Vladimir Nabokov )
Origin of drossMiddle English dros from Old English drōs dregs
(third-person singular simple present drosses, present participle drossing, simple past and past participle drossed)
- To remove dross from.
From Middle English drosse, dros, from Old English drōs, an apocopated variant of Old English drōsna, drōsne (“a ground, sediment, lees, dregs, dirt, ear wax”), from Proto-Germanic *drōhsnǭ ("yeast, sediment"; compare Proto-Germanic *dragjō (“yeast”)), from Proto-Indo-European *dʰrak-, *dʰrag- (“sediment, yeast”). Cognate with Scots dros, drose, drosse (“small particles, fragments, dross”), Middle Dutch droes (“dregs”), Dutch droesem (“dregs”), German Drusen (“lees, dregs”), Latin fracēs (“grounds or dregs of oil”). Related also to drast, dregs.