surface discoloration on a metal, usually from a thin film of oxide or sulfide

listen to the pronunciation of surface discoloration on a metal, usually from a thin film of oxide or sulfide
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tarnish
surface discoloration on a metal, usually from a thin film of oxide or sulfide

    Hyphenation

    sur·face dis·col·or·a·tion on a metal, u·su·al·ly from a thin film of ox·ide or sulfide

    Pronunciation

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