tarnish


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tarnish

Surface discoloration or reduced luster of metals owing to the effect of corrosive substances or galvanic action. In dental restorations, such action may be enhanced by accumulation of bacterial plaque.

tarnish,

n 1. surface discoloration or loss of luster by metals. Under oral conditions, it often results from hard and soft deposits.
2. a chemical process by which a metal surface is discolored or its luster destroyed.
References in periodicals archive ?
VICTORY: Security firm boss Tony 'Banger' Walsh has welcomed new laws to curb cowboy operators who tarnish his industry's reputation.
MIAMI -- Jewelry designer and founder of Tarnish Jewels Debi Wechsler launches a stunning summer collection for 2011, crafting bold and innovative jewelry accents for this years hottest fashion trends.
Product #3: Connoisseurs Dazzle Drops Silver Jewelry Cleaner(TM) Until now, traditional dips for cleaning silver jewelry may have removed tarnish, but they did not polish and prevent tarnish buildup.
Vivekanand Reddy, who had fallen out with Jagan earlier this year, surprised everybody when he supported Jagan and criticised some Congress leaders for conspiring to tarnish the image and the memory of his brother, Y.
The sodium solution should draw the tarnish off the cutlery and it will be attracted onto the foil.
Shegerian, who has represented individuals subject to defamation throughout his career, stresses that one's private life becoming public can tarnish his or her reputation and as a result hurt his or her career.
Those who tarnish our good name with the current ugly outbreaks of racism, tarnish the heritage of everyone of us, man, woman, and child, in Scotland.
Firefighters themselves must heed the messages from the audit and help root out unacceptable behavior that only serves to tarnish the image of the entire department.
While this may have triggered a negative impact on the area for the short term, it nonetheless did not tarnish SoHo's reputation as Manhattan's authentic and trendy boutique enclave.
BAREBACKING COULD TARNISH GAY MEN'S IMAGE AMONG STRAIGHT PEOPLE-WITH DISASTROUS RESULTS
As the tarnish slowly dissolves, the true metal shines through; while some medals are only silver-washed copper, others are true sterling.
If male beauty is an old silver thing, Klein never removes its tarnish entirely; he likes its dissolution, its mess.