noun🔗ShareRouilleThe 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."La rouille sur la chaîne de mon vélo rendait les trajets en vélo au travail très dangereux.materialconditionchemistryChat with AIVocabulary GamePractice Reading
noun🔗ShareRouilleA 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. Rouille verte ou bleu-vert de cuivre ; vert-de-gris.materialsubstancechemistryChat with AIVocabulary GamePractice Reading
noun🔗ShareRouilleA reddish-brown color."The old metal shed had a dull rust on its roof. "Le vieil hangar en métal avait de la rouille terne sur son toit.colorChat with AIVocabulary GamePractice Reading
noun🔗ShareRouilleA disease of plants caused by a reddish-brown fungus."The farmer worried about the rusts on his wheat crop, as they could significantly reduce his harvest. "L'agriculteur s'inquiétait de la rouille sur sa récolte de blé, car elle pourrait réduire considérablement sa récolte.diseaseplantbiologyagricultureChat with AIVocabulary GamePractice Reading
noun🔗ShareDommages causés aux timbres et aux pages d'album par une infection fongiqueDamage caused to stamps and album pages by a fungal infection."The collector lamented that the rusts on his vintage stamp album pages had significantly lowered its value. "Le collectionneur a déploré que les dommages causés par la moisissure sur les pages de son album de timbres anciens aient considérablement diminué sa valeur.organismplantstationerybiologyChat with AIVocabulary GamePractice Reading
verb🔗ShareRouilleTo oxidize, especially of iron or steel."The patio furniture had rusted in the wind-driven spray."Le mobilier de patio avait rouillé sous l'effet des embruns poussés par le vent.materialchemistryenvironmentscienceconditionChat with AIVocabulary GamePractice Reading
verb🔗ShareRouiller, oxyderTo cause to oxidize."The wind-driven spray had thoroughly rusted the patio furniture."Les embruns poussés par le vent avaient complètement rouillé les meubles de patio.chemistrymaterialscienceChat with AIVocabulary GamePractice Reading
verb🔗ShareRouillerTo be affected with the parasitic fungus called rust."The wheat in the field rusts every summer, turning orange and unhealthy. "Le blé dans le champ rouille chaque été, devenant orange et malsain.biologyplantdiseaseorganismChat with AIVocabulary GamePractice Reading
verb🔗ShareRouiller, s'encrasserTo (cause to) degenerate in idleness; to make or become dull or impaired by inaction."If you don't practice piano regularly, your skill rusts, and it becomes harder to play. "Si vous ne pratiquez pas le piano régulièrement, vos compétences s'encrassent et il devient plus difficile de jouer.conditionprocessqualityChat with AIVocabulary GamePractice Reading
