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单词 stratum
释义
stratum
noun[C]
uk
/ˈstrɑː.təm/us
/ˈstreɪt̬.əm/
pluralstratauk/ˈstrɑː.tə/us
/ˈstreɪt̬.ə/
one of thepartsorlayersinto which something isseparated:
部分；层；阶层
Thereportshowsthatdrugshavepenetratedevery stratumofAmericansociety.报告显示，毒品已经渗入美国社会的各个阶层。
geologyspecialized
alayerofrock,soil, orsimilarmaterial:
层；岩层；地层
Thecliffsarecharacterizedbyremarkablezigzaggingstrata ofshaleandsandstone.这些悬崖的特征是它们由一层层清晰易辨的页岩、石灰岩和砂岩交错构成。
SMART Vocabulary: related words and phrases
Coverings and layers
  • a blanket ofsomethingidiom
  • beeswax wrap
  • blanket
  • brazen
  • casing
  • diaphragm
  • interstratification
  • interstratify
  • lagging
  • layer
  • layered
  • seam
  • sheath
  • strata
  • substratum
  • superstratum
  • tar paper
  • tarpaulin
  • veil
  • vein
See more results »
(Definition ofstratumfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

stratum| American Dictionary

stratum
noun[Cusually pl]
us
/ˈstreɪ·t̬əm,ˈstræt̬·əm/
pluralstrataus
/ˈstreɪ·t̬ə,ˈstræt̬·ə/
asinglelayerof something:
theupperstrata ofsociety
earth science
asinglelayerof theearth:
Engineers couldinjectseawater intosandystrata beneath thecity.
(Definition ofstratumfrom theCambridge Academic Content Dictionary© Cambridge University Press)

Examplesofstratum

stratum
Finally, event-based stratification orders rules so that lower strata do not produce events consumed by the upper strata.
From theCambridge English Corpus
In order to avoid aerial predators, susceptible birds may concentrate their time foraging lower in the vegetative strata.
From theCambridge English Corpus
Popular politics used to have its vertical and horizontal structures : sections, organizations, and strata.
From theCambridge English Corpus
There is then a much greater likelihood that all of these strata will have some part to play in all languages.
From theCambridge English Corpus
Both the strata and filaments are distant from each other by plasma regions of the same scales, but with decreased density and temperature.
From theCambridge English Corpus
Adding strata improves descriptive coverage, but what penalty, if any, does this move exact in restrictiveness, typology, learning and other goals of phonological theory ?
From theCambridge English Corpus
In the cases they examine, they do not find evidence that the strata required to treat opacity are independently motivated.
From theCambridge English Corpus
Moreover, the evolution of the living standards of the lower strata of the population is in sharp contrast with that of the upper classes.
From theCambridge English Corpus
Within each such region, it was then subdivided into rural-urban strata (>50 000 inhabitants).
From theCambridge English Corpus
Let fj be the union of the highest strata down to the jth one.
From theCambridge English Corpus
The 'crunch' issue for most strata, of course, is income security.
From theCambridge English Corpus
In terms of occupied space, they may literally monopolise the upper sediment strata at lower tidal levels (personal observation).
From theCambridge English Corpus
If extreme drying and cracking occurs, upper (usually darker) sediments drop into lower strata, resulting in a gross over turning of stratigraphy over time.
From theCambridge English Corpus
Multiple levels of strata both inform and inhibit the film composer.
From theCambridge English Corpus
A strong partitioning of the strata is obvious: c. 25% of the species are restricted to each of the three strata.
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.

Collocationswithstratum

stratum

These are words often used in combination withstratum.

Click on a collocation to see more examples of it.

different stratum
They come from an entirelydifferentstratumof society.
From the
Hansard archive
Example from the Hansard archive. Contains Parliamentary information licensed under theOpen Parliament Licence v3.0
geological stratum
He also trained in the observation of fossils, prehistoric remains, and geological strata.
From theCambridge English Corpus
middle stratum
For themiddlestratum, the cumulative effect is 1.88 points, and for the top stratum it is 1.98 points.
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/stratum##
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更新时间：2024/12/28 2:12:16