Sentence examples for A tarnish from inspiring English sources

Such a tarnish may dull minerals such as galena (PbS), which has a bright bluish lead-gray colour on a fresh surface but may become dull upon long exposure to air.

A White House official said the provision was virtually meaningless and would have no effect on the rollout of insurance exchanges, but the requirement was unnecessary and adds a tarnish to the president's vow not to pay the slightest bit of ransom to Republicans.

Despite the science having passed peer review, Sullivan says, the circumstances put a "tarnish on it.

X-ray fluorescence images (collected at 3950 eV excitation energy, above the Ag L3-edge, 3351 eV) of Ag, Cl, and S (obtained with partial fluorescence yield of Ag Lα and S and Cl Kα X-ray emission) and accompanying XANES spectra of a tarnish spot on the plate can be seen in Fig. 5.

Fig. 5 XPS imaging of knife tarnish spot: Analysis of a tarnish spot visible on 10 nm Al2O3 ALD coated silver knife blade after 1 year ambient aging with (b) SEM image and c XPS imaging with overlain quantified line profile of O 1s, Al 2p, S 2p and Ag 3d spectra.

At room temperature, pure plutonium is silvery in color but gains a tarnish when oxidized.

Yet the shiny face has a tarnished flip side.

Scrap the resolutions and resign ourselves to another year with a tarnished halo?

With so many job applicants, employers have little incentive to hire someone with a tarnished background.

So to the difficulties of local adjustment there is added a tarnishing of the classic model.

Fabricio's claims have excited the opposition, but he is himself a tarnished figure.