coherence
Use Coherence in a sentence
əns, -ˈhɛr- noun
2.
logical interconnection; overall sense or understandability.
3.
congruity; consistency.
4.
Physics, Optics. (of waves) the state of being coherent.
5.
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.
Related forms
non·co·her·ence, noun
non·co·her·en·cy, noun
Synonyms
3. correspondence, harmony, agreement, rationality.
3. correspondence, harmony, agreement, rationality.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
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Based on the Random House Dictionary, © Random House, Inc. 2013.
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Link To coherence
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Coherence
is a TOEFL word you need to know.
So is amiable. Does it mean:
| having pleasant, good-natured personal qualities; friendly and sociable, agreeable; willing to accept the wishes or suggestions of others |
| constant; habitual; inveterate: |
Collins
World English Dictionary
coherence or coherency (kəʊˈhɪərəns, kəʊˈhɪərənsɪ) ![[Click for IPA pronunciation guide]](http://static.sfdict.com/dictstatic/g/d/dictionary_questionbutton_default.gif) | |
| —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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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).
Online Etymology Dictionary, © 2010 Douglas Harper
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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. |
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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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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Example sentences
In technical terms, the system loses its quantum coherence.
Increasing signs of coherence are something to watch out for, when disturbances can propagate fast and far.
Somehow the juxtaposition of two distinct styles and two distinct companies achieved stylistic coherence.
Coherence is not necessarily a virtue of film festivals.
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