stratum


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Related to stratum: stratum basale, striatum

stra·tum

 (strā′təm, străt′əm)
n. pl. stra·ta (-tə) or stra·tums
1. A horizontal layer of material, especially one of several parallel layers arranged one on top of another.
2. Geology A bed or layer of sedimentary rock that is visually distinguishable from adjacent beds or layers.
3. Any of the regions of the atmosphere, such as the troposphere, that occur as layers.
4. Biology A layer of tissue: the epithelial stratum.
5. A level of society composed of people with similar social, cultural, or economic status.
6. One of a number of layers, levels, or divisions in an organized system: a complex poem with many strata of meaning.

[Latin strātum, a covering, from neuter past participle of sternere, to spread; see stratus.]

stra′tal (strāt′l) adj.
Usage Note: The standard singular form is stratum; the standard plural is strata (or sometimes stratums), not stratas.

stratum

(ˈstrɑːtəm)
n, pl -ta (-tə) or -tums
1. (Geological Science) (usually plural) any of the distinct layers into which sedimentary rocks are divided
2. (Biology) biology a single layer of tissue or cells
3. a layer of any material, esp one of several parallel layers
4. (Physical Geography) a layer of ocean or atmosphere either naturally or arbitrarily demarcated
5. (Sociology) a level of a social hierarchy that is distinguished according to such criteria as educational achievement or caste status
[C16: via New Latin from Latin: something strewn, from sternere to scatter]
ˈstratal adj

stra•tum

(ˈstreɪ təm, ˈstræt əm)

n., pl. stra•ta (ˈstreɪ tə, ˈstræt ə) stra•tums.
1. a layer of material, naturally or artificially formed, often formed one upon another.
2. layer; level: an allegory with many strata of meaning.
3. a single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.
4. a layer of tissue; lamella.
5. a layer of vegetation in a plant community.
6. a layer of the ocean or the atmosphere distinguished by natural or arbitrary limits.
7. a level or grade of a people or population esp. with reference to social position and education: the lowest stratum of society.
[1590–1600; < Latin strātum literally, a cover, n. use of neuter of strātus, past participle of sternere to spread, strew]
usage: The usual singular of this noun, taken from Latin, is stratum: the lowest stratum in society. The plural is strata: Several strata of settlement were discovered in the evacuation. Occasionally strata occurs as a singular and stratas as a plural. Neither of these uses is well established, and they are often regarded as errors. See also agenda, criterion, media.

stra·tum

(strā′təm, străt′əm)
Plural strata or stratums
1. A layer of rock whose composition is more or less the same throughout. A particular rock stratum is visibly different from the rock strata above and below it.
2. A layer of tissue, as of the skin or another organ.

Stratum

 one of a number of layers, 1902.
Examples: stratum of society, 1850; of mythological thought, 1870; the lower social stratum, 1902.

stratum

A single sedimentary layer.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.stratum - 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)stratum - 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)
organism, being - a living thing that has (or can develop) the ability to act or function independently
epidermis, cuticle - the outer layer of the skin covering the exterior body surface of vertebrates
corneum, horny layer, stratum corneum - the outermost layer of the epidermis consisting of dead cells that slough off
stratum lucidum - the layer of epidermis immediately under the stratum corneum in the skin of the palms and soles
stratum granulosum - the layer of epidermis just under the stratum corneum or (on the palms and soles) just under the stratum lucidum; contains cells (with visible granules) that die and move to the surface
malpighian layer, rete Malpighii, stratum basale, stratum germinativum - the innermost layer of the epidermis
corium, derma, dermis - the deep vascular inner layer of the skin
cambium - the inner layer of the periosteum
paries, wall - (anatomy) a layer (a lining or membrane) that encloses a structure; "stomach walls"
layer - a relatively thin sheetlike expanse or region lying over or under another
substratum, substrate - any stratum or layer lying underneath another
superstrate, superstratum - any stratum or layer superimposed on another
horizon - a specific layer or stratum of soil or subsoil in a vertical cross section of land
seam, bed - a stratum of ore or coal thick enough to be mined with profit; "he worked in the coal beds"
bed - (geology) a stratum of rock (especially sedimentary rock); "they found a bed of sandstone"
2.stratum - people having the same social, economic, or educational status; "the working class"; "an emerging professional class"
people - (plural) any group of human beings (men or women or children) collectively; "old people"; "there were at least 200 people in the audience"
world, domain - people in general; especially a distinctive group of people with some shared interest; "the Western world"
society - an extended social group having a distinctive cultural and economic organization
age class - people in the same age range
agriculture - the class of people engaged in growing food
sodality, brotherhood, fraternity - people engaged in a particular occupation; "the medical fraternity"
estate of the realm, the three estates, estate - a major social class or order of persons regarded collectively as part of the body politic of the country (especially in the United Kingdom) and formerly possessing distinct political rights
labor, labour, proletariat, working class - a social class comprising those who do manual labor or work for wages; "there is a shortage of skilled labor in this field"
lower class, underclass - the social class lowest in the social hierarchy
bourgeoisie, middle class - the social class between the lower and upper classes
booboisie - class consisting of all those who are considered boobs
commonality, commonalty, commons - a class composed of persons lacking clerical or noble rank
peasantry - the class of peasants
demimonde - a class of woman not considered respectable because of indiscreet or promiscuous behavior
underworld - the criminal class
yeomanry - class of small freeholders who cultivated their own land
caste - a social class separated from others by distinctions of hereditary rank or profession or wealth
caste - (Hinduism) a hereditary social class among Hindus; stratified according to ritual purity
class structure - the organization of classes within a society
upper class, upper crust - the class occupying the highest position in the social hierarchy
ninja - a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations
firing line - the most advanced and responsible group in an activity; "the firing line is where the action is"
immigrant class - recent immigrants who are lumped together as a class by their low socioeconomic status in spite of different cultural backgrounds
center - politically moderate persons; centrists
old school - a class of people favoring traditional ideas
market - the customers for a particular product or service; "before they publish any book they try to determine the size of the market for it"
craft, trade - people who perform a particular kind of skilled work; "he represented the craft of brewers"; "as they say in the trade"
fair sex, womanhood, woman - women as a class; "it's an insult to American womanhood"; "woman is the glory of creation"; "the fair sex gathered on the veranda"
3.stratum - 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"
place - an abstract mental location; "he has a special place in my thoughts"; "a place in my heart"; "a political system with no place for the less prominent groups"

stratum

noun
1. class, group, level, station, estate, rank, grade, category, bracket, caste It was an enormous task that affected every stratum of society.
2. layer, level, seam, table, bed, vein, tier, stratification, lode The rock strata shows that the region was intensely dry 15,000 years ago.
Translations

stratum

[ˈstrɑːtəm] N (stratums or strata (pl))
1. (lit) → estrato m
2. (fig) → estrato m, capa f

stratum

[ˈstrɑːtəm] [strata] (pl) n
(GEOLOGY)strate f
[society] → strate f

stratum

n pl <strata> (Geol, fig) → Schicht f

stratum

[ˈstrɑːtəm] n (strata (pl)) (also) (fig) → strato
References in classic literature ?
I was walking in a meadow, the source of a small brook, when the sun at last, just before setting, after a cold, gray day, reached a clear stratum in the horizon, and the softest, brightest morning sunlight fell on the dry grass and on the stems of the trees in the opposite horizon and on the leaves of the shrub oaks on the hillside, while our shadows stretched long over the meadow east- ward, as if we were the only motes in its beams.
The proletariat, the lowest stratum of our present society, cannot stir, cannot raise itself up, without the whole superincumbent strata of official society being sprung into the air.
Drawing a chair to the fire, I desired mine host to favor us with a glass apiece of whiskey punch, which was speedily prepared, steaming hot, with a slice of lemon at the bottom, a dark-red stratum of port wine upon the surface, and a sprinkling of nutmeg strewn over all.
The height was much greater than was required for the ordinary purposes of experiment, but this was evidently the effect of chance, as the roof of the cavern was a natural stratum of rock that projected many feet beyond the base of the pile.
They were all on the one stratum, hollowed out of some soft rock which lay between the volcanic basalt forming the ruddy cliffs above them, and the hard granite which formed their base.
The sapling which had rooted down to a poisonous stratum on the spot of its sowing had been transplanted to a deeper soil.
This exclamation of distress, far from exciting compassion, only added amusement to the good Parisian populace who surrounded the ladder, and who, it must be confessed, taken in the mass and as a multitude, was then no less cruel and brutal than that horrible tribe of robbers among whom we have already conducted the reader, and which was simply the lower stratum of the populace.
Then came a few guests belonging to a lower stratum of society--people who, like the Epanchins themselves, moved only occasionally in this exalted sphere.
And yet the bed still continued to descend, and after a minute, which seemed in its duration almost an age to the king, it reached a stratum of air, black and chill as death, and then it stopped.
Then suddenly the glow beneath assumed distinct outlines, became flames, and the Vaterland ceased to descend and hung observant, and it would seem unobserved, just beneath a drifting stratum of cloud, a thousand feet, perhaps, over the battle below.
We suffered nearly two hours of this intense and bitter cold, until at about two hundred and forty-five miles from the surface of the earth we entered a stratum of solid ice, when the mercury quickly rose to 32 degrees.
Rather might I have experienced a cosmic cycle, with all its changes and evolutions for that which I have seen with my own eyes in this brief interval of time--things that no other mortal eye had seen before, glimpses of a world past, a world dead, a world so long dead that even in the lowest Cambrian stratum no trace of it remains.