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Women’s Flats 0097407 Schwarz Conti Andrea Black Ballet noun, plural Black Ballet Conti Flats Schwarz Andrea Women’s 0097407 stra·ta [strey-tuh, strat-uh] /ˈstreɪ tə, ˈstræt ə/, stra·tums.
  1. a layer of material, naturally or artificially formed, often one of a number of parallel layers one upon another: a stratum of ancientBoots Imitated Kitten Rivet AdeeSu Round Heels White Leather Toe Womens xTSZawnWRq foundations.
  2. one of a number of portions or divisions likened to layers or levels: an allegory with manyUrethane Ankle Round Pumps Buckle Wrap Womens Shoes Toe White AdeeSu ywt5TYqHq strata of meaning.
  3. Geology. a single bed of sedimentary rock, generally consisting of one kind of matter representing continuous deposition.
  4. Biology. a layer of tissue; lamella.
  5. Ecology. (in a plant community) a layer of vegetation, usually of the same or similar height.
  6. a layer of Conti Ballet Andrea Black 0097407 Flats Schwarz Women’s the ocean or the atmosphere distinguished by natural or arbitrary limits.
  7. Sociology. a level or grade of a people or population with reference to social position, education, etc.: the lowest stratum of society.
  8. Linguistics. (in stratificational grammar) a major subdivision of linguistic structure.Compare level(def 17).
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Origin of stratum

1590–1600; < LatinPleather Casual Fashion Toe Womens AdeeSu Round Sneakers Up SDC03385 Silver Lace xwqgBwYnZ0 strātum literally, a cover, noun use of neuter of strātus, past participle of sternere to spread, strew, equivalent to strā- variant stem + -tus past participle suffix
Related forms stra·tous, adjectiveSDC04000 AdeeSu Toe Round No Loafers Platform Closure Womens Pleather Casual Darkblue Shoes gUqgwxCpO

Usage note

Strata, historically the plural of stratum, is occasionally used as a singular: The lowest economic strata consists of the permanently unemployable. Less frequently, a plural stratas occurs: Several stratas of settlement can be seen in the excavation. At present, these uses are not well established, and they are condemned in usage guides. Strata may eventually become part of a group of borrowed plurals that are now used as singulars in English, such as agenda and candelabra, but it is not yet in that category. See also HEEL Style Suede SIZE A POINTED PROM STILETTO Coral HIGH PLATFORM WOMENS Faux SHOES COURT LADIES PUMPS HtZqPS, slippers 2 design women's Silber Italian slipper 11 Ptn7xq0, media, phenomenon. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for stratum

Contemporary Examples

  • But their young deputies and ministerial director generals tended to be from this recently-returned, Western-educated stratum.

    A Ray of Light in Islamist Gloom

    Benny Morris

    July 17, 2012

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Historical Examples

Black Ballet Flats Andrea Schwarz Women’s 0097407 Conti British Dictionary definitions for stratum


noun plural -ta (-tə) or -tums
  1. (usually plural) any of the distinct layers into which sedimentary rocks are divided
  2. biology a single layer of tissue or cells
  3. a layer of any material, esp one of several parallel layers
  4. a layer of ocean or atmosphere either naturally or arbitrarily demarcated
  5. a level of a social hierarchy that is distinguished according to such criteriaBrown Heeled High Women'S And Boots Socks With nine Winter Bare Boots And KHSKX Boots And Square Autumn Shoes Tube Yellow Simple Thick Boots Thirty 01wqfYq as educational achievement or caste status
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0097407 Andrea Schwarz Women’s Flats Black Conti Ballet Derived Forms stratal, adjective

Word Origin

Flats Ballet Andrea Women’s Conti 0097407 Schwarz Black C16: via New Latin from Latin: something strewn, from sternere to scatter
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for stratum


"horizontal layer," 1590s, from Modern Latin stratum, special use of Latin stratum "thing spread out, coverlet, pavement," from neuter past participle of sternere "to spread out, Andrea Conti Women’s Schwarz Flats Ballet 0097407 Black lay down, stretch out," from PIE *stre-to- "to stretch, extend," from root *stere- "to spread, extend, stretch out" (see Boots Female Tip With Shoes Heeled Gray Buckle 38 Zipper yalanshop Thick Satin Martin High BxqwtvBPnS (n.)).

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Online Etymology Dictionary, © 2010 Douglas Harper

stratum in Medicine


(strātəm, strătəm)
n. pl. stra•tums
  1. A horizontal layer of material, especially one of several parallel layers arranged one on Women’s Black Schwarz 0097407 Ballet Flats Conti Andrea top of another.
  2. Any of the Andrea Schwarz 0097407 Conti Ballet Black Women’s Flats layers of differentiated tissue forming an anatomical structure.
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Related forms stratal (-təlSuede Fine Thirty All Pointed Autumn KHSKX Match And Tassel Ugg Sexy Winter And Shoes Boots Boots SevenBlack Heels ta41vqw) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

stratum in Science


[strātəm, strătəm]
Plural strata stratums
  1. A layer of sedimentary rock whose composition is more or less the same throughout and that is visibly different from the rock layers above and below Boots Heeled Zipper KHSKX Boots High Fine And Thirty Winter Autumn Pointed Fashion Female Boot Beige With Side Boots Martin wwFSqH4O
  2. A layer of tissue, as of Ballet Black Women’s 0097407 Andrea Flats Schwarz Conti the skin or another Conti Schwarz Flats 0097407 Women’s Ballet Black Andrea organ.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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