Feststoff

== German == === Etymology === From fest +‎ Stoff. === Pronunciation === === Noun === Feststoff m (strong, genitive Feststoffes or Feststoffs, plural Feststoffe) solid (material) sediment ==== Declension ==== === Further reading === “Feststoff” in Duden online “Feststoff” in Digitales Wörterbuch der deutschen Sprache