bluing

American  

[bloo-ing] / ˈblu ɪŋ /

Or blueing

noun

Chemistry.

1. a substance, as indigo, used to whiten clothes or give them a bluish tinge.

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Etymology

Origin of bluing

First recorded in 1660–70; blue + -ing ¹

Example Sentences

Some on Reddit fixed this by sanding theirs down to take the shine off of the finish, and another recommended using an acrylic topcoat and another chemical bluing.

From The Verge

When a congressional seat opened up in a bluing stretch of Phoenix’s eastern suburbs, Sinema ran and won.

From Seattle Times

Increasingly, he said it looks like a policeman: his dark work slacks, the bluing on his revolver, the way the intruder held the silver flashlight over his shoulder.

From Los Angeles Times

It doesn’t take long for fungi to cause bluing, which makes it less or even undesirable to saw mills.

From Washington Times

The bluing of the landscape with distance, which Leonardo called “aerial perspective”, was based on a detailed theory of light and air, informed by the classical theory of atomism.

From Nature