bluing
noun(blu-ing)
a preparation used in laundering to counteract yellowing of white fabrics
bluing
verb(blu-ing)
to make (something) blue in color: such as
bluing
verb(blu-ing)
to dye, tint, or paint (something) blue
bluing
verb(blu-ing)
to heat (iron or steel) to about 550 to 600 degrees Fahrenheit so that it acquires a protective bluish coating