noun🔗ShareRostThe deteriorated state of iron or steel as a result of moisture and oxidation."The rust on my bicycle chain made cycling to work very dangerous."Der Rost an meiner Fahrradkette machte das Radfahren zur Arbeit sehr gefährlich.materialsubstancechemistryconditionChat with AIVocabulary GamePractice Reading
noun🔗ShareRostA similar substance based on another metal (usually with qualification, such as "copper rust")."aerugo. Green or blue-green copper rust; verdigris. (American Heritage Dictionary, 1973)"Aerugo. Grün oder blaugrüner Kupferrost; Grünspan. (American Heritage Dictionary, 1973)materialsubstanceChat with AIVocabulary GamePractice Reading
noun🔗ShareRostrotA reddish-brown color."The old bicycle had a beautiful rust color. "Das alte Fahrrad hatte eine wunderschöne rostrote Farbe.colorChat with AIVocabulary GamePractice Reading
noun🔗ShareRostA disease of plants caused by a reddish-brown fungus."The roses in the garden developed a rust, turning their leaves reddish-brown. "Die Rosen im Garten entwickelten Rost, wodurch sich ihre Blätter rotbraun verfärbten.diseaseplantbiologyagricultureChat with AIVocabulary GamePractice Reading
noun🔗ShareSchimmelbefall, StockfleckenDamage caused to stamps and album pages by a fungal infection."The philatelist carefully examined the stamp album pages, noticing a noticeable rust spot on one of them. "Der Philatelist untersuchte sorgfältig die Seiten des Briefmarkenalbums und bemerkte einen deutlichen Schimmelfleck auf einer von ihnen.stationerymicroorganismplantChat with AIVocabulary GamePractice Reading
verb🔗ShareRostenTo oxidize, especially of iron or steel."The patio furniture had rusted in the wind-driven spray."Die Gartenmöbel waren durch den windgetriebenen Sprühregen verrostet.materialchemistryscienceconditionChat with AIVocabulary GamePractice Reading
verb🔗ShareRosten lassen, oxidierenTo cause to oxidize."The wind-driven spray had thoroughly rusted the patio furniture."Der vom Wind getriebene Sprühnebel hatte die Gartenmöbel gründlich rosten lassen.chemistrymaterialprocessChat with AIVocabulary GamePractice Reading
verb🔗ShareRostenTo be affected with the parasitic fungus called rust."The farmer worries that the wheat plants will rust if the weather stays damp. "Der Bauer befürchtet, dass die Weizenpflanzen rosten, wenn das Wetter feucht bleibt.biologyplantdiseaseorganismChat with AIVocabulary GamePractice Reading
verb🔗ShareRosten, verrosten, rosten lassenTo (cause to) degenerate in idleness; to make or become dull or impaired by inaction."The neglected garden tools had rusted over the summer, becoming dull and unusable. "Die vernachlässigten Gartengeräte waren über den Sommer verrostet und wurden stumpf und unbrauchbar.conditionactionqualityChat with AIVocabulary GamePractice Reading
