|1.||[ verb ] make dirty or spotty, as by exposure to air, of metals; also used metaphorically|
|Synonyms:||sully defile stain maculate|
: "The silver was tarnished by the long exposure to the air" "Her reputation was sullied after the affair with a married man"
|Related terms:||spot darken macule blot|
|2.||[ noun ] discoloration of metal surface caused by oxidation|