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Blur from extended photographic time exposure


Cognate to blear, the verb is from the noun.



blur ‎(third-person singular simple present blurs, present participle blurring, simple past and past participle blurred)

  1. To make indistinct or hazy, to obscure or dim.
    to blur a photograph by moving the camera while taking it
  2. To smear, stain or smudge.
    to blur a manuscript by handling it while damp
  3. (intransitive) To become indistinct.
  4. To cause imperfection of vision in; to dim; to darken.
    • J. R. Drake
      Her eyes are blurred with the lightning's glare.
  5. (obsolete, transitive) To sully; to stain; to blemish, as reputation.
    • Hudibras
      Sarcasms may eclipse thine own, / But cannot blur my lost renown.
  6. (computing, graphical user interface, transitive) To transfer the input focus away from.
    • John Pollock, JavaScript: A Beginner's Guide, Second Edition (page 175)
      Then give this box focus to blur the first one: []
    • 2001, Martin Webb, ‎Michel Plungjan, ‎Keith Drakard, Instant JavaScript (page 678)
      These form elements need to have an onFocus event handler to blur the current focus.
    • 2007, Danny Goodman, JavaScript Bible (page 273)
      Blurring one window and focusing on another window yields the same result of sending the window to the back of the pile.
    • 2010, Chuck Easttom, Advanced Javascript (page 329)
      A manual way to blur a text object is to press the Tab key, which advances focus to the next field in order and removes it from the current field (blurring it).


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blur ‎(plural blurs)

  1. A smear, smudge or blot
  2. Something that appears hazy or indistinct
    • 1907, Harold Bindloss, chapter 26, The Dust of Conflict[1]:
      Maccario, it was evident, did not care to take the risk of blundering upon a picket, and a man led them by twisting paths until at last the hacienda rose blackly before them. Appleby could see it dimly, a blur of shadowy buildings with the ridge of roof parapet alone cutting hard and sharp against the clearing sky.
    • 2012 June 29, Kevin Mitchell, “Roger Federer back from Wimbledon 2012 brink to beat Julien Benneteau”, the Guardian:
      The fightback when it came was in the Federer fashion: unfussy, filled with classy strokes from the back with perfectly timed interventions at the net that confounded his opponent. The third set passed in a bit of a blur, the fourth, which led to the second tie-break, was the most dramatic of the match.
  3. (obsolete) A moral stain or blot.
    • Udall
      Lest she [] will with her railing set a great blur on mine honesty and good name.

Derived terms[edit]



blur ‎(comparative more blur, superlative most blur)

  1. (Malaysia, Singapore, informal) In a state of doubt or confusion.