stratum
stratum
Definition
stra·tum (strāt′əm, strat′-)
noun pl. stra′ta--ə or -·tums
- a horizontal layer or section of material, esp. any of several lying one upon another; specif.,
- Biol. a layer of tissue
- Geol. a single layer of sedimentary rock
- a section, level, or division, as of the atmosphere or ocean, regarded as like a stratum
- any of the socioeconomic groups of a society as determined by birth, income, education, etc.
Etymology: ModL < L, a covering, blanket < stratus, pp. of sternere, to spread, stretch out, cover: for IE base see strew
stratum
Synonyms
stratum
Usage Examples
Preposition: of
- peasantry: Clearly these parties had to lose all support and all influence among the workers and the toiling strata of the peasantry.
- limestone: Thus the coal seams were laid down, together with their associated layers of clay, ironstone and strata of limestone.
- sandstone: Humboldt compares some of the stony beds, when viewed from a distance, to strata of a schistose sandstone.
- society: You can't avoid any stratum of American society.
Converse of object
- overlie: High-resolution seismic image of polygonal fault systems feeding fluid expulsion pipes in the overlying strata.
- fold: The rocks are generally Cambrian, which is pretty old, and you can see some folded strata here.
- expose: Visit the quarry to see some exposed strata and search for fossils.
Adjective modifier
- Paleozoic: The generally subdued relief associated with the underlying basement complex of highly folded Paleozoic strata provides the unity of this region.
- Carboniferous: The bulk of coal deposits in the UK occur in Upper Carboniferous strata.
- Mesozoic: Good exposures of range of Mesozoic strata - Mercia Mudstone Group to Glenarm Chalk Member.
- Jurassic: The galleries reach back deep into the Purbeck ridge in horizontal Jurassic strata.
- Cretaceous: Facies variation was also studied in Late Cretaceous strata.
- geological: The old waterfall has been replaced by the geological strata & time trail.
Modifies a noun
- corneum: Firstly, the matrix in which the cells of the stratum corneum are embedded is rich in lipid.
- basale: In light skinned people, the melanin is concentrated deep in the epidermis, particularly in the stratum basale layer.
Noun used with modifier
- chalk: The site has two boreholes from which water is drawn from the chalk strata below.
- limestone: The limestone strata, resting on clay, dip inwards from above the entrance till they sink below the level of the river outside.
- ruling: The leading socialist and trade union cliques have their roots intertwined with those of the ruling stratum of the Third Republic.
- rock: Detailed chemical analyzes of specific rock strata are beginning to show evidence of impacts of large bodies with the Earth.
- bearing: The survey looks at the history of the Rockingham Forest woodland together with the underlying iron bearing strata.
Browse dictionary entries near stratum
- stratosphere
- stratopause
- stratocumulus
- stratocracy
- stratigraphy
- stratify
- stratiform
- stratified
- stratificational grammar
- stratification
- stratus
- Strauss
- stravage
- Stravinsky
- straw
- straw boss
- straw color
- straw-hat
- straw man
- straw person (or man)
