1. bluing - Noun
2. bluing - Verb
of Blue
The act of rendering blue; as, the bluing of steel.
Something to give a bluish tint, as indigo, or preparations used by washerwomen.
Source: Webster's dictionaryBluing main Bluing is a technique that can provide limited resistance to rusting for small steel items, such as firearms; for it to be successful, a water-displacing oil is rubbed onto the blued steel and other steel. Source: Internet
It may be packaged as a soil acidifier or “bluing formula” for hydrangeas and other acid-loving plants. Source: Internet
Can you use laundry bluing for bluer blues? Source: Internet