AskDefine | Define bluing

Dictionary Definition



1 used to whiten laundry or hair or give it a bluish tinge [syn: blueing, blue]
2 a process that makes something blue (or bluish) [syn: blueing]

User Contributed Dictionary


Alternative spellings



  1. present participle of blue


  1. A substance used in laundry to whiten clothes; blue
  2. Any of several processes to protect steel against rust

Extensive Definition

Bluing may refer to:
  • Bluing (fabric), household product used to improve the appearance of fabrics
  • Bluing (steel), passivation process in which steel is partially protected against rust
  • "bluing" of machine parts to check for tolerances, see engineer's blue
  • Mrs. Stewart's Bluing, brand of fabric bluing agent that whitens fabrics by adding a blue dye
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