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coherence

[koh-heer-uh

ns, -her-]

Example Sentences Origin

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noun

the act or state of cohering; cohesion.

logical interconnection; overall sense or understandability.

congruity; consistency.

Physics, Optics. (of waves) the state of being coherent.

Linguistics. the property of unity in a written text or a segment of spoken discourse that stems from the links among its underlying ideas and from the logical organization and development of its thematic content. Compare cohesion (def. 4).

Also, co·her·en·cy.

Origin:
1570–80; coher(ent) + -ence

Related forms

non·co·her·ence, noun

non·co·her·en·cy, noun

Synonyms
3. correspondence, harmony, agreement, rationality.

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Link To coherence

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Coherence is a TOEFL word you need to know.

So is tangible. Does it mean:

capable of being touched; material or substantial; real or actual, rather than imaginary or visionary

a transient fiery streak in the sky produced by a meteoroid passing through the earth's atmosphere; a shooting star

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Example Sentences

There seems to be little coherence in the jurist's volte-face.

Other things can be taught, so that the students can write with ease and coherence.

Their unification should bring more coherence to anti-poverty programmes.

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There seems to be little coherence in the jurist's volte-face.

Other things can be taught, so that the students can write with ease and coherence.

Their unification should bring more coherence to anti-poverty programmes.

He figured out that they were all the same thing and helped bring coherence to a rambling tale.

In technical terms, the system loses its quantum coherence.

There's no sedimentary material that is uniform throughout the region, that has any coherence.

But he emphasized instead the pulsing, forward-moving coherence of the score as a whole.

Let a hundred flowers bloom, because there is no longer a public culture that has any coherence.

The coherence of the country is commonly defined even by its shape, the hexagon.

We expect quality and not a lack of meaningful methodology and dumbed down writing coherence.

But although his critique of latter-day environmentalism strains in a few places, it does have a larger coherence.

But emotionally communicative coherence is hard to come by.

Maybe shared governance precludes coherence and sustained vision.

On one measure, the coherence of ideas, convergence is elusive.

Coherence is not necessarily a virtue of film festivals.

In part because of its age and its long standing regard for coherence by many.

The strong cultural correlation between these stances creates an illusion of ideological coherence.

There is a coherence in her career, in her style, so the spectator can immediately grasp the essence.

The event proved long on optimism but rather short on coherence.

The book is a post-modernist's playground, as its author piles on the paradoxes until coherence is left far behind.

And he is finally giving his disparate ideas some coherence.

Traffic and overall planning theme and coherence are but two of the major hurdles.

Increasing signs of coherence are something to watch out for, when disturbances can propagate fast and far.

Her narrative carries the reader through this still-maturing subject's lack of coherence.

But size tells another, more important story-that of coherence.

The results are enthralling, even when they seem to be thrashing at coherence.

He is a firm believer in process and will use it to enforce a philosophical coherence that has been lacking.

Celebrities lend only confusion to a protest movement that already has challenges aplenty in the coherence department.

But there is little sign of coherence among the rebels.

The result is a book whose coherence is achieved only at the expense of a good deal of omission, obfuscation and bad history.

Now you have little preparation and not much intellectual coherence.

Just the lacks coherence between this academic metric and what is subsequently taught by academia.

One has to be firm about crucial issues, otherwise you won't have the necessary coherence or support.

Imaginary enemies are a desperate ruse to provide the union with coherence.

The only logical coherence on exhibit is the value placed on the golden rule.

Financial instability would be lessened and coherence between financial and real sectors would grow again.

They seem to have no coherence among them intellectually.

There is no coherence to what they teach and what they require for a major.

Photosynthetic microbes employ quantum coherence to efficiently channel the incoming energy from.

The obstacle in using ions is that they may lose their coherence too quickly to be useful as a computing resource.

But growing too fast, she said, can be at odds with the editorial coherence of the surfing team.

Weir imparts movement and coherence while re-creating the suspense her characters endured and the suffering they inflicted.

It helps lend coherence to the gallery's programme and acknowledges that other artists are important arbitrators.

In fact the force fields are a consequence of the inflation since quantum coherence is the natural state.

But successful expansions are about coherence as well as price.

It would be tidy to be able to say that the sharp difference in style and coherence between the two books.

The only thing missing is a screenplay of any real interest or coherence.

But coherence has never been a significant criterion for horror movies.

And though it aims for more coherence than it delivers, it has endless flair with no self-importance.

Yet partly new casts this season gave this unusual work coherence and new glamour.

We then identified coefficients of coherence and self-adaptive control parameters and processes in the human body.

Rather, it summed up a whole set of impulses, and gave coherence to a time.

At one excruciating point, to jazz accompaniment, a young brunette drawls a poem that has about as much coherence as a cat fight.

The movie is thick with period costumes, furniture and music, and thin on coherence and character.

The needle is an application of an imaging technology called optical coherence tomography.

From a jumble of self-promotion and fragmented wisdom, however, two events did rise up into a kind of binding coherence.

Somehow the juxtaposition of two distinct styles and two distinct companies achieved stylistic coherence.

Courts have said that that standard does not require much in the way of coherence.

Oller's piece lacks some coherence and only his final image, of an ensemble running in place, reveals where his sympathies lie.

But unlike the other animals, people do have a drive to seek coherence and meaning.

What it doesn't have is dramatic coherence or backbone.

COLLAPSE

Collins

World English Dictionary

coherence or coherency (kəʊˈhɪərəns, kəʊˈhɪərənsɪ)

—n
1.	logical or natural connection or consistency
2.	another word for cohesion

coherency or coherency

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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Etymonline

Word Origin & History

coherence

c.1580, from cohérence (16c.), from L. cohærentia, noun of state from cohærentem (see coherent).

American Heritage

Science Dictionary

coherence

(kō-hîr'əns, -hěr'-) Pronunciation Key
A property holding for two or more waves or fields when each individual wave or field is in phase with every other one. Lasers, for example, emit almost perfectly coherent light; all the photons emitted by a laser have the same frequency and are in phase. Since quantum states can be described by a wave equation, coherence can hold for quantum states in general, though only among bosons. Coherence is generally possible in physical systems that may undergo superposition. Maintaining coherence of light is important in fiber optic communications. See also Bose-Einstein condensate.

Encyclopedia Britannica

Encyclopedia

coherence

a fixed relationship between the phase of waves in a beam of radiation of a single frequency. Two beams of light are coherent when the phase difference between their waves is constant; they are noncoherent if there is a random or changing phase relationship. Stable interference patterns are formed only by radiation emitted by coherent sources, ordinarily produced by splitting a single beam into two or more beams. A laser, unlike an incandescent source, produces a beam in which all the components bear a fixed relationship to each other

Learn more about coherence with a free trial on Britannica.com.

Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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Matching Quote

"When the coherence of the parts of a stone, or even that composition of parts which renders it extended; when these familiar objects, I say, are so inexplicable, and contain circumstances so repugnant and contradictory; with what assurance can we decide concerning the origin of worlds, or trace their history from eternity to eternity?"

-David Hume

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