• WordNet 3.6
    • v blur become vague or indistinct "The distinction between the two theories blurred"
    • v blur make dim or indistinct "The fog blurs my vision"
    • v blur make unclear, indistinct, or blurred "Her remarks confused the debate","Their words obnubilate their intentions"
    • v blur make a smudge on; soil by smudging
    • v blur become glassy; lose clear vision "Her eyes glazed over from lack of sleep"
    • v blur to make less distinct or clear "The haze blurs the hills"
    • n blur a hazy or indistinct representation "it happened so fast it was just a blur","he tried to clear his head of the whisky fuzz"
    • ***
Webster's Revised Unabridged Dictionary
  • Interesting fact: Experiments conducted in Germany and at the University of Southampton in England show that even mild and incidental noises cause the pupils of the eyes to dilate. It is believed that this is why surgeons, watchmakers, and others who perform delicate manual operations are so bothered by noise. The sounds cause their pupils to change focus and blur their vision.
    • Blur A dim, confused appearance; indistinctness of vision; as, to see things with a blur; it was all blur .
    • Blur A moral stain or blot. "Lest she . . . will with her railing set a great blur on mine honesty and good name."
    • Blur That which obscures without effacing; a stain; a blot, as upon paper or other substance. "As for those who cleanse blurs with blotted fingers, they make it worse."
    • Blur To cause imperfection of vision in; to dim; to darken. "Her eyes are blurred with the lightning's glare."
    • Blur To render obscure by making the form or outline of confused and uncertain, as by soiling; to smear; to make indistinct and confused; as, to blur manuscript by handling it while damp; to blur the impression of a woodcut by an excess of ink. "But time hath nothing blurred those lines of favor
      Which then he wore."
    • Blur To sully; to stain; to blemish, as reputation. "Sarcasms may eclipse thine own,
      But can not blur my lost renown."
    • ***
Century Dictionary and Cyclopedia
    • blur To obscure or sully (a thing) with something which detracts from its fairness or beauty.
    • blur To sully; stain; blemish: as, to blur one's reputation.
    • blur To obscure without quite effacing; render indistinct; confuse and bedim, as the outlines of a figure.
    • blur To dim the perception or susceptibility of; make dull or insensible to impression: as, blurred eyesight; to blur the judgment.
    • blur To make blurs in writing.
    • n blur 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 blur Figuratively, a blot, stain, or injury affecting character, reputation, and the like.
    • n blur A blurred condition; a dim, confused appearance; indistinctness.
    • ***
Chambers's Twentieth Century Dictionary
    • n Blur blur a blot, stain, or spot
    • v.t Blur to blot, stain, obscure, or blemish (with out, over):—pr.p. blur′ring; pa.p. blurred
    • ***


  • George Carey
    George Carey
    “I believe with all my heart that the Church of Jesus Christ should be a Church of blurred edges.”
  • Winston Churchill
    “The English never draw a line without blurring it.”
  • Joseph Joubert
    Joseph Joubert
    “Words are like eyeglasses they blur everything that they do not make clear.”


Webster's Revised Unabridged Dictionary
Prob. of same origin as blear,. See Blear


In literature:

There was a faint, indistinct blur of voices.
"The Heart of Unaga" by Ridgwell Cullum
Honoria's vision grew somewhat blurred and misty.
"The History of Sir Richard Calmady" by Lucas Malet
From across the road a huge dark blur had detached itself and was moving forward stealthily to the attack.
"The Fifth Ace" by Douglas Grant
His face was no more than a blur, and her unseen beauty was powerless to help her.
"Moor Fires" by E. H. (Emily Hilda) Young
His own sense of loss was merely a blur.
"The Root of Evil" by Thomas Dixon
A coneshaped hill rose to a blurred point, marking the burialplace of the Dinkman house.
"Greener Than You Think" by Ward Moore
On such an autumn day night sets in early, and the road ahead was simply a gray blur by the time the boy had reached the outskirts of the town.
"Historic Boyhoods" by Rupert Sargent Holland
Then the pines and firs on either side of the broad drive melted into a green-grey blur.
"The World Peril of 1910" by George Griffith
The steamer's lights made blurred patches in the fog.
"Blow The Man Down" by Holman Day
A drizzle of rain was falling and blurred the glass; but even had the windows been open, she could not have identified her whereabouts.
"The Book of All-Power" by Edgar Wallace

In poetry:

Veiled in gleam-blurs,
Starry locked,
Brooding o'er the dreamers
Dawnward rocked.
"Break Of Day" by John Gneisenau Neihardt
Alone—yet not alone
In this wild whirl and blur;
How vacantly the stone
Stares up at her!
"Manhattan" by Charles Hanson Towne
Nothing to do; and vacant hands
Bring on the idiot-pain;
He tries to think--to recollect,
But the blur is on his brain.
"In The Prison Pen" by Herman Melville
In a patter come the showers;
Mournfully beats the rain;
The landscape blurring, the flowers,
It streams on the window pane.
"Lines - I" by Manmohan Ghose
I called. And in the night
I heard him stop below,
His owlish lanthorn's light
Blurring the windy snow--
How long the time and slow!
"Time And Death And Love" by Madison Julius Cawein
Such sumptuous languor lures the sense--
Such luxury of indolence--
The eyes blur as a nymph's might blur,
With water-lilies watching her.
"A Southern Singer" by James Whitcomb Riley

In news:

Taiwan is asking Apple to blur a map image of its new $1.4 billion early warning radar station that can detect aircraft and missiles coming from as far as western China.
And it looks like that won't be the end of Blur 's travel plans for the year, either.
TAIPEI, Taiwan—Taiwan is asking Apple Inc to blur a map image of its new $1.4 billion early warning radar station that can detect aircraft and missiles coming from as far as western China.
Blur Category: Music News.
RT Surveillance Drones Blur Legal Limits Of Domestic Spying.
They will be headlining alongside Rammstein in what will be Blur 's first performance at Rock Werchter since 1999.
Tracking the state of Blur 's fragile reunion is something like measuring the state of the actual union.
Later the same month, Albarn told Metro that Blur 's reunion wasn't necessarily done yet.
Booq Python Blur & Boa Flow XL.
The lines are blurred in Division I lacrosse between attackmen and midfielders.
Blur's Graham Coxon, Damon Albarn, Dave Rowntree, and Alex James / Photo by Getty Images.
Although it sits in the chain-restaurant blur along I-635, this restaurant turns out some reliable, and sometimes even very good, Indian food.
A Blurring of the Lines in the Populist vs Capitalist Debate.
So MTV will blur out the word "gay" but not "bitch" "slut" "whore" or "fuck".
Obama Dangerously Blurs His Syria 'Red Lines'.

In science:

We also allow for some blurring of the recorded signal before it is transmitted back.
Time Reversal for Classical Waves in Random Media
The convolution with a filter f describes this blurring.
Time Reversal for Classical Waves in Random Media
It has a sharp cutoff towards the red due to the limit of the principal lines and is blurred towards the violet.
On the Theory of Collisions between Atoms and Electrically Charged Particles
The spatial averaging involved there effectively blurs local, apparently noise-driven features in the differential σp (R) data (e.g., the bump around R ∼ 22 kpc), such that the σap data never stray substantially from the predictions of isotropy for either assumed density profile ncl (r).
Dynamics of the Globular Cluster System Associated with M49 (NGC4472): Cluster Orbital Properties and the Distribution of Dark Matter
Finally, since the telescope image has been blurred by the point-spread function, one needs to know the moments of the point-spread function, and if possible correct its systematic effects on the properties of the measured image.
Observations of cluster substructure using weakly lensed sextupole moments