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STRATUM
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Irregular inflected form: strata
I. (noun)
Sense 1
Meaning:
A subpopulation divided into a stratified sampling
Classified under:
Nouns denoting cognitive processes and contents
Hypernyms ("stratum" is a kind of...):
subpopulation (a population that is part of a larger population)
Sense 2
Meaning:
An abstract place usually conceived as having depth
Example:
the mind functions on many strata simultaneously
Synonyms:
Classified under:
Nouns denoting cognitive processes and contents
Hypernyms ("stratum" is a kind of...):
place (an abstract mental location)
Sense 3
Meaning:
People having the same social, economic, or educational status
Example:
an emerging professional class
Synonyms:
class; social class; socio-economic class; stratum
Classified under:
Nouns denoting groupings of people or objects
Hypernyms ("stratum" is a kind of...):
people ((plural) any group of human beings (men or women or children) collectively)
Hyponyms (each of the following is a kind of "stratum"):
fair sex; woman; womanhood (women as a class)
craft; trade (people who perform a particular kind of skilled work)
market (the customers for a particular product or service)
old school (a class of people favoring traditional ideas)
center (politically moderate persons; centrists)
immigrant class (recent immigrants who are lumped together as a class by their low socioeconomic status in spite of different cultural backgrounds)
firing line (the most advanced and responsible group in an activity)
ninja (a class of 14th century Japanese who were trained in martial arts and were hired for espionage and assassinations)
upper class; upper crust (the class occupying the highest position in the social hierarchy)
caste ((Hinduism) a hereditary social class among Hindus; stratified according to ritual purity)
caste (a social class separated from others by distinctions of hereditary rank or profession or wealth)
yeomanry (class of small freeholders who cultivated their own land)
underworld (the criminal class)
domain; world (people in general; especially a distinctive group of people with some shared interest)
age class (people in the same age range)
agriculture (the class of people engaged in growing food)
brotherhood; fraternity; sodality (people engaged in a particular occupation)
estate; estate of the realm; the three estates (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)
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)
Holonyms ("stratum" is a part of...):
society (an extended social group having a distinctive cultural and economic organization)
Holonyms ("stratum" is a member of...):
class structure (the organization of classes within a society)
Sense 4
Meaning:
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)
Classified under:
Nouns denoting spatial position
Hypernyms ("stratum" is a kind of...):
layer (a relatively thin sheetlike expanse or region lying over or under another)
Domain category:
being; organism (a living thing that has (or can develop) the ability to act or function independently)
Hyponyms (each of the following is a kind of "stratum"):
bed ((geology) a stratum of rock (especially sedimentary rock))
bed; seam (a stratum of ore or coal thick enough to be mined with profit)
horizon (a specific layer or stratum of soil or subsoil in a vertical cross section of land)
superstrate; superstratum (any stratum or layer superimposed on another)
substrate; substratum (any stratum or layer lying underneath another)
paries; wall ((anatomy) a layer (a lining or membrane) that encloses a structure)
cambium (the inner layer of the periosteum)
corium; derma; dermis (the deep vascular inner layer of the skin)
malpighian layer; rete Malpighii; stratum basale; stratum germinativum (the innermost layer of the epidermis)
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)
stratum lucidum (the layer of epidermis immediately under the stratum corneum in the skin of the palms and soles)
corneum; horny layer; stratum corneum (the outermost layer of the epidermis consisting of dead cells that slough off)
cuticle; epidermis (the outer layer of the skin covering the exterior body surface of vertebrates)
Derivation:
stratify (form layers or strata)
stratify (divide society into social classes or castes)
Context examples:
Modified epidermal cells located in the stratum basale.
(Merkel cell, NLM, Medical Subject Headings)
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 Lost World, by Sir Arthur Conan Doyle)
Half desmosomes that occur on the basal surface of the stratum basalis of stratified squamous epithelium.
(Hemidesmosome, NCI Thesaurus)
The decisive factor used to help segregate the study subject into a stratum group.
(Defined Stratification Criterion, NCI Thesaurus)
It consists of the following layers: stratum corneum (horny layer), stratum granulosum (granular layer), stratum spinosum (prickle cell layer), and stratum basale (basal cell layer).
(Epidermis, NCI Thesaurus)
It was not a bright or splendid summer evening, though fair and soft: the haymakers were at work all along the road; and the sky, though far from cloudless, was such as promised well for the future: its blue—where blue was visible—was mild and settled, and its cloud strata high and thin.
(Jane Eyre, by Charlotte Brontë)
The study, led by Donald Y.M. Leung, M.D., Ph.D., of National Jewish Health in Denver, examined the top layers of the skin, known as the stratum corneum, in areas with eczema lesions and in adjacent normal-looking skin.
(Scientists identify unique subtype of eczema linked to food allergy, National Institutes of Health)
A pathway of fibers originating in the lateral part of the entorhinal area, perforating the subiculum of the hippocampus, and running into the stratum moleculare of the hippocampus, where these fibers synapse with others that go to the dentate gyrus.
(Perforant Pathway, NLM, Medical Subject Headings)
Azelaic acid exerts its keratolytic and comedolytic effects by reducing the thickness of the stratum corneum and decreasing the number of keratohyalin granules by reducing the amount and distribution of filaggrin in epidermal layers.
(Azelaic Acid, NCI Thesaurus)
NOTE(S): A randomization book is a predefined set of assignments to portions of a study based on criteria, such as stratum group for example, that ensures a desired distribution of subjects across those portions of the study.
(Planned Randomization Book Allocation, NCI Thesaurus/BRIDG)
