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stratum    音标拼音: [str'ætəm]
n. 地层,阶层

地层,阶层

stratum
层

stratum
层

stratum
n 1: one of several parallel layers of material arranged one on
top of another (such as a layer of tissue or cells in an
organism or a layer of sedimentary rock)
2: people having the same social, economic, or educational
status; "the working class"; "an emerging professional class"
[synonym: {class}, {stratum}, {social class}, {socio-economic
class}]
3: an abstract place usually conceived as having depth; "a good
actor communicates on several levels"; "a simile has at least
two layers of meaning"; "the mind functions on many strata
simultaneously" [synonym: {level}, {layer}, {stratum}]

Stratum \Stra"tum\, n.; pl. E. {Stratums}, L. {Strata}. The
latter is more common. [L., from sternere, stratum, to
spread; akin to Gr. ? to spread, strew. See {Strew}, and cf.
{Consternation}, {Estrade}, {Prostrate}, {Stratus},
{Street}.]
1. (Geol.) A bed of earth or rock of one kind, formed by
natural causes, and consisting usually of a series of
layers, which form a rock as it lies between beds of other
kinds. Also used figuratively.
[1913 Webster]

2. A bed or layer artificially made; a course.
[1913 Webster]

83 Moby Thesaurus words for "stratum":
Appleton layer, F layer, Heaviside-Kennelly layer, Van Allen belt,
band, bed, bedding, belt, blood, bracket, branch, caste, category,
chemosphere, clan, class, couche, course, deck, division, estate,
floor, gallery, grade, group, grouping, head, heading, ionosphere,
isothermal region, kin, label, layer, ledge, level,
lower atmosphere, measures, order, outer atmosphere, overlayer,
overstory, photosphere, pigeonhole, plane, position, predicament,
race, rank, rating, rubric, seam, section, sept, set, shelf, stage,
standing, station, status, step, story, strain, stratification,
stratosphere, subdivision, subgroup, suborder, substratosphere,
substratum, superstratum, table, thickness, tier, title, topsoil,
tropopause, troposphere, underlayer, understory, understratum,
upper atmosphere, vein, zone


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  • STRATUM Definition Meaning - Merriam-Webster
    In geology, a stratum is a layer of rock or soil that is distinct from those above and below it Rock and soil strata (notice the plural form) can be seen in road cuts, cliffs, quarries, riverbanks, and sand dunes, and in pieces of limestone, slate, and shale
  • Stratum - Wikipedia
    In geology and related fields, a stratum (pl : strata) is a layer of rock or sediment characterized by certain lithologic properties or attributes that distinguish it from adjacent layers from which it is separated by visible surfaces known as either bedding surfaces or bedding planes [1]
  • STRATUM | definition in the Cambridge English Dictionary
    STRATUM meaning: 1 one of the parts or layers into which something is separated: 2 a layer of rock, soil, or… Learn more
  • STRATUM Definition Meaning | Dictionary. com
    Stratum definition: a layer of material, naturally or artificially formed, often one of a number of parallel layers one upon another See examples of STRATUM used in a sentence
  • Stratum
    The 5 GHz Stratum X3 is the first in the Stratum family to offer Proxim’s exceptionally efficient point to multipoint wireless networking technology The latest Stratum X3 model is a point-to-multipoint base station that features a 90° sector antenna
  • stratum noun - Definition, pictures, pronunciation and usage notes . . .
    Definition of stratum noun in Oxford Advanced Learner's Dictionary Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more
  • STRATUM definition and meaning | Collins English Dictionary
    A stratum of society is a group of people in it who are similar in their education, income, or social status
  • stratum, n. meanings, etymology and more | Oxford English Dictionary
    stratum, n meanings, etymology, pronunciation and more in the Oxford English Dictionary
  • Stratum - Definition, Meaning Synonyms | Vocabulary. com
    Stratum comes from the Latin meaning "something that has been laid down," like asphalt or a bedsheet, but we generally use it to describe layers of something If you go into geology, you will probably investigate different strata of the soil
  • stratum - WordReference. com Dictionary of English
    a layer of material, naturally or artificially formed, often one of a number of parallel layers one upon another: a stratum of ancient foundations one of a number of portions or divisions likened to layers or levels: an allegory with many strata of meaning





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