کلماتور
The quality or state of being tarnished; stain; soil; blemish.
Having jags; set with teeth; notched; uneven; as, jaggy teeth. Addison.
To lose luster; to become dull; as, gilding will tarnish in a foul air.
A thin film on the surface of a metal, usually due to a slight alteration of the original color; as, the steel tarnish in columbite.