ultramarin marine translations
ultramarin.online
nl roest   het oxidatieproces op de oppervlakte van ijzer en het product ervan;  
de Rost das Oxidations- (und Zerfalls-) produkt auf der Oberfläche von Eisenteilen;
en rust reddish-brown-yellow coating formed on iron or steel by oxidation, as during exposure to air and/or moisture; it consists mainly of ferric oxide and ferric hydroxide;
fr rouille  
es herrumbre      
it ruggine