🇬🇧 en it 🇮🇹

scum noun

  /skʌm/
  • (uncountable) A layer of impurities that accumulates at the surface of a liquid (especially molten metal or water).
 impurità
  • (uncountable) A greenish water vegetation (such as algae), usually found floating on the surface of ponds
 mucillagine
Wiktionary Links