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单词 diffusion
释义
diffusion
noun[U]
uk
/dɪˈfjuː.ʒən/us
/dɪˈfjuː.ʒən/
theactionofspreadingin manydirections:
扩散；传播；散布
Powerfulglobalinstitutionsdrivethe diffusionofnewtechnologies.强大的全球机构推动了新技术的传播。
Moderncommunicationsmake the diffusion ofideasextremelyrapid.现代通讯使思想的传播极为迅速。
(of agasorliquid) theprocessofspreadingthrough or into asurroundingsubstancebymixingwith it:
（气体或液体的）扩散
theprocessof diffusion ingases/liquids/solids气体/液体/固体中的扩散过程
Theinwarddiffusion ofoxygenwasfairlyrapidatroomtemperature.在室温下，氧气的内向扩散相当迅速。
See
diffuse
More examples
  • Thegovernmentneedstopromotewiderdiffusion ofe-commercein theeconomy.
  • There was arapiddiffusion of thecrisisfrom onecountryto allcountriesin theregion.
  • He neversharedtheirbeliefinprogressthrough theadvancementofscienceor diffusion ofknowledge.
SMART Vocabulary: related words and phrases
Spreading and scattering
  • all over the placeidiom
  • bedaub
  • bell
  • bestrew
  • billow
  • diffuse
  • dispersion
  • encroach on/uponsomething
  • fan out
  • go around
  • go round
  • go/do the roundsidiom
  • radial
  • smudging
  • smudgy
  • spatter
  • spattered
  • splay
  • sprinkle
  • sweep
See more results »

You can also find related words, phrases, and synonyms in the topics:

Physical & chemical processes
(Definition ofdiffusionfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

diffusion| American Dictionary

diffusion
noun[U]
us/dɪˈfju·ʒən/
science
(ofgasesandliquids) theprocessofspreadinginto asurroundingsubstance
biology
Diffusion is also themethodby whichsubstancespassin and out ofcellsthroughtheirmembrane(=outsidecovering).
physics
Diffusion is also the waylightspreadswhen it isreflectedfrom aroughsurfaceorpassedthrough atranslucentsubstance(=substancethatallowsonly somelighttopassthrough).
(Definition ofdiffusionfrom theCambridge Academic Content Dictionary© Cambridge University Press)

diffusion| Business English

diffusion
noun[U]
uk
/dɪˈfjuːʒən/us
MARKETING,COMMUNICATIONS
theprocessby whichinformation,ideas,changesinbehaviour, etc.spreadthrough agroupofpeople:
Theresearchlooksatfactorsinfluencingthe diffusion ofinnovativeproductsinconsumermarkets.
(Definition ofdiffusionfrom theCambridge Business English Dictionary© Cambridge University Press)

Examplesofdiffusion

diffusion
Thus, the longitudinaldiffusionand the length of striations are reduced significantly.
From theCambridge English Corpus
Selection and drift in subdivided populations : a straightforward method for derivingdiffusionapproximations and applications involving dominance, selfing and local extinctions.
From theCambridge English Corpus
A mechanism is studied of the heterogeneity coefficient dissipation due to moleculardiffusion.
From theCambridge English Corpus
Other elements of spatialdiffusion, however, also emerge in this research.
From theCambridge English Corpus
The turbulence energy balance is examined, including the separate effects of verticaldiffusionof pressure and local kinetic energy.
From theCambridge English Corpus
This would again suggest turbulentdiffusiontimes of around 3000 years, which would then be the time required for achieving global homochirality in the ocean.
From theCambridge English Corpus
A commonly used procedure to estimate turbulentdiffusiontimes is in terms of enhanced turbulent (eddy) diffusivities.
From theCambridge English Corpus
Here we have made the additional assumption that verticaldiffusionof solute is negligible.
From theCambridge English Corpus
On the other hand, vertical flows are also important, particularly in their application to the aerosoldiffusionin the atmosphere and upper ocean biogeochemistry.
From theCambridge English Corpus
These knots persist for a time of the order of the vertical thermaldiffusiontime.
From theCambridge English Corpus
Stage 3 is characterized by thediffusionof the standard preverbal particle non along with the growing amount of verbal utterances.
From theCambridge English Corpus
We wanted to test if thisdiffusionof the ingested fluorophores might be through the process of endocytosis.
From theCambridge English Corpus
Thus, we have performed a study of nonresonant electrondiffusionin a single plasma.
From theCambridge English Corpus
Unfavourable dynamics and spindiffusioneffects also make a quantitative analysis difficult.
From theCambridge English Corpus
However, the introduction of informationdiffusionleads to the possibility of multiple equilibria and can expand the parameter space of potential learnable equilibria.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.

Collocationswithdiffusion

diffusion

These are words often used in combination withdiffusion.

Click on a collocation to see more examples of it.

cultural diffusion
This would help to ensure their wideculturaldiffusion.
From theCambridge English Corpus
diffusion barrier
In the presence of adiffusionbarrier, molecules will diffuse more slowly than when in simple aqueous solution.
From theCambridge English Corpus
diffusion method
To further confuse the issue, the gaseous diffusion method was not the only means of producing enriched uranium.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/diffusion##
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更新时间：2024/12/28 1:42:03