Definitions

from The American Heritage® Dictionary of the English Language, 4th Edition

  • transitive v. To make indistinct and hazy in outline or appearance; obscure.
  • transitive v. To smear or stain; smudge.
  • transitive v. To lessen the perception of; dim: "For street children . . . drugs offer the chance to blur their hopeless poverty” ( Alma Guillermoprieto).
  • intransitive v. To become indistinct.
  • intransitive v. To make smudges or stains by smearing.
  • n. A smear or blot; a smudge.
  • n. Something that is hazy and indistinct to the sight or mind.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • v. To make indistinct or hazy, to obscure or dim.
  • v. To smear, stain or smudge.
  • v. To become indistinct.
  • n. A smear, smudge or blot
  • n. Something that appears hazy or indistinct
  • n. A moral stain or blot.

from the GNU version of the Collaborative International Dictionary of English

  • transitive v. To render obscure by making the form or outline of confused and uncertain, as by soiling; to smear; to make indistinct and confused.
  • transitive v. To cause imperfection of vision in; to dim; to darken.
  • transitive v. To sully; to stain; to blemish, as reputation.
  • n. That which obscures without effacing; a stain; a blot, as upon paper or other substance.
  • n. A dim, confused appearance; indistinctness of vision.
  • n. A moral stain or blot.

from The Century Dictionary and Cyclopedia

  • To obscure or sully (a thing) with something which detracts from its fairness or beauty.
  • To sully; stain; blemish: as, to blur one's reputation.
  • To obscure without quite effacing; render indistinct; confuse and bedim, as the outlines of a figure.
  • To dim the perception or susceptibility of; make dull or insensible to impression: as, blurred eyesight; to blur the judgment.
  • To make blurs in writing.
  • n. A smudge or smear, such as that made by brushing writing or painting before it is dry; a blot which partially defaces or obscures.
  • n. Figuratively, a blot, stain, or injury affecting character, reputation, and the like.
  • n. A blurred condition; a dim, confused appearance; indistinctness.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. a hazy or indistinct representation
  • v. become vague or indistinct
  • v. make unclear, indistinct, or blurred
  • v. make dim or indistinct
  • v. make a smudge on; soil by smudging
  • v. to make less distinct or clear
  • v. become glassy; lose clear vision

Etymologies

Probably akin to Middle English bleren, to blear.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Cognate with to blear, the verb is from the noun. (Wiktionary)

Examples

  • Life is difficult and many of the symptoms of chronic pain blur and bleed into each other, he writes.

    Brigid Brett: The Long Shelf of War

  • Ajax on Jul 3, 2008 blur is one of the premiere game cinematics companies with much outstanding work, they have also done a couple of short films that could easily match if not better pixars shorts.

    David Fincher Developing Animated Version of The Goon « FirstShowing.net

  • The blur is a visible condensation cloud that often occurs close to the speed of the sound barrier as the B-2 Spirit bomber breaks the sound barrier during a flight over California.

    Amazing Photo Of Stealth Bomber Approaching Sound Barrier | Impact Lab

  • Student mentors: Brandon (aka blur brandon/bb), Tracy and Faeza!

    overthefence Diary Entry

  • Three weeks from now, Iowa caucuses will kick this off and begin what we'll politely call the blur of the early primaries.

    CNN Transcript Dec 30, 2003

  • The blur was the girl who appeared out of nowhere.

    Haven

  • A love vast as ours is penalised, as it were, by this blur, which is the hall-mark of infinity.

    Not George Washington — an Autobiographical Novel

  • Because Oregon's so-called blur offense is so precision-based, Fairley has the potential to disrupt the timing of Thomas, LaMichael James and Co. Therefore, the most important players on the Ducks' offense Monday night may be interior linemen Jordan Holmes, Carson York and C.E.

    SI.com

  • As the lines blur, that is the best way to identify the devices that you really have to say no to, and the only way you can show your users why the technology is inappropriate.

    Latest from Computerworld

  • I recall the blur of Jane and Christie as the train roared into one station after another.

    Thestar.com - Home Page

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