stratum

UK:^*^*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈstrɑːtəm/

US:USA pronunciation: IPAUSA pronunciation: IPA/ˈstreɪtəm, ˈstrætəm/

US:USA pronunciation: respellingUSA pronunciation: respelling(strā′təm, strat′əm)

Inflections of 'stratum' (n):

stra•tum /ˈstreɪtəm, ˈstrætəm/USA pronunciation n. [countable], pl. stra•ta /ˈstreɪtə, ˈstrætə/USA pronunciation stra•tums.

a layer of something, often formed one upon another:a stratum of skin tissue.
a layer;
level:That story has many strata of meanings.
Geologya single bed or layer of rock, consisting of one kind of material.
Sociologya level or grade of a people in a society, esp. with reference to social position and education:How could he hope to rise from the lowest stratum of society?

stra•tum (strā′təm, strat′əm),USA pronunciation n., pl. stra•ta (strā′tə, strat′ə),USA pronunciation stra•tums.

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.
Geologya single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.
Biologya layer of tissue;
lamella.
Ecology(in a plant community) a layer of vegetation, usually of the same or similar height.
Oceanographya layer of the ocean or the atmosphere distinguished by natural or arbitrary limits.
Sociologya level or grade of a people or population with reference to social position, education, etc.:the lowest stratum of society.
Linguistics(in stratificational grammar) a major subdivision of linguistic structure. Cf. level (def. 18).

Latin strātum literally, a cover, noun, nominal use of neuter of strātus, past participle of sternere to spread, strew, equivalent. to strā- variant stem + -tus past participle suffix
1590–1600

stra′tous, adj.

Strata,

stratum,

The lowest economic strata consists of the permanently unemployable.

stratas

Several stratas of settlement can be seen in the excavation.

Strata

agenda

candelabra,

agenda, criterion, media, phenomenon.

Collins Concise English Dictionary © HarperCollins Publishers::

stratum /ˈstrɑːtəm/ n ( pl -ta /-tə/, -tums)

(usually plural) any of the distinct layers into which sedimentary rocks are divided
a single layer of tissue or cells
a layer of any material, esp one of several parallel layers
a layer of ocean or atmosphere either naturally or arbitrarily demarcated
a level of a social hierarchy that is distinguished according to such criteria as educational achievement or caste status

Etymology: 16th Century: via New Latin from Latin: something strewn, from sternere to scatterˈstratal adj

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