[ bloo-ing ]
/ ˈblu ɪŋ /

noun Chemistry.

Definition for blueing (2 of 3)

Origin of blue

1250–1300; Middle English blewe < Anglo-French blew, bl(i)u, bl(i)ef blue, livid, discolored, Old French blo, blau (French bleu) < Germanic *blǣwaz; compare Old English blǣwen, contraction of blǣhǣwen deep blue, perse (see blae, hue1), Old Frisian blāw, Middle Dutch blā(u), Old High German blāo (German blau), Old Norse blār


14 happy.

Related forms

blue·ly, adverbblue·ness, nounhalf-blue, adjectiveun·blued, adjective

Can be confused

blew blue

Definition for blueing (3 of 3)


or blue·ing

[ bloo-ing ]
/ ˈblu ɪŋ /

noun Chemistry.

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

Origin of bluing

First recorded in 1660–70; blue + -ing1 Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for blueing

British Dictionary definitions for blueing (1 of 3)



/ (ˈbluːɪŋ) /


a blue material, such as indigo, used in laundering to counteract yellowing
the formation of a film of blue oxide on a steel surface

British Dictionary definitions for blueing (2 of 3)


/ (bluː) /


adjective bluer or bluest

verb blues, blueing, bluing or blued

See also blues

Derived Forms

bluely, adverbblueness, noun

Word Origin for blue

C13: from Old French bleu, of Germanic origin; compare Old Norse blār, Old High German blāo, Middle Dutch blā; related to Latin flāvus yellow

British Dictionary definitions for blueing (3 of 3)



/ (bluː) /


Australian informal a nickname for a person with red hair
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Idioms and Phrases with blueing


In addition to the idioms beginning with blue

  • blue funk, in a
  • blue in the face

also see:

  • between a rock and a hard place (devil and deep blue sea)
  • black and blue
  • bolt from the blue
  • have the blues
  • into thin air (the blue)
  • like greased lightning (a blue streak)
  • once in a blue moon
  • out of a clear blue sky
  • talk one's arm off (a blue streak
  • until blue in the face)
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.