A few more swallows, no problems, and the glass was empty except for a white, powdery residue.

"Was there a powdery residue in them?"

"There was a fine, powdery residue inside his spacesuit," Marguerite said.

After the rug is dry, sweep or gently vacuum away the powdery residue.

All that remained of the unpleasant rejecta was a sterile powdery residue.

Most furnaces are designed to remove ash as a powdery residue.

The powdery black residue began clumping together as the inky ashes lightened to gray.

Moreover, when he picked it up, its crystal remained behind on the stone in powdery residue.

Rain is supposed to wash away the powdery residue, continually exposing a clean surface.

The sterling silver has a black powdery residue and other metals seem to be eaten away.