blueing (root: blue)

Noun blueing has 2 senses

• blueing(n = noun.substance) blue, bluing - used to whiten laundry or hair or give it a bluish tinge;
is a kind of dye, dyestuff

• blueing(n = noun.process) bluing - a process that makes something blue (or bluish);
is a kind of chemical action, chemical change, chemical process