definição e significado de Clay | sensagent.com


   Publicitade D▼


 » 
alemão búlgaro chinês croata dinamarquês eslovaco esloveno espanhol estoniano farsi finlandês francês grego hebraico hindi holandês húngaro indonésio inglês islandês italiano japonês korean letão língua árabe lituano malgaxe norueguês polonês português romeno russo sérvio sueco tailandês tcheco turco vietnamês
alemão búlgaro chinês croata dinamarquês eslovaco esloveno espanhol estoniano farsi finlandês francês grego hebraico hindi holandês húngaro indonésio inglês islandês italiano japonês korean letão língua árabe lituano malgaxe norueguês polonês português romeno russo sérvio sueco tailandês tcheco turco vietnamês

Definição e significado de Clay

Definição

clay (n.)

1.a rich soil consisting of a mixture of sand and clay and decaying organic materials

2.the dead body of a human being"the cadaver was intended for dissection" "the end of the police search was the discovery of a corpse" "the murderer confessed that he threw the stiff in the river" "honor comes to bless the turf that wraps their cl..."

3.a very fine-grained soil that is plastic when moist but hard when fired

4.water soaked soil; soft wet earth

5.a white clay (especially a white clay used by potters)

Clay (n.)

1.United States politician responsible for the Missouri Compromise between free and slave states (1777-1852)

2.United States general who commanded United States forces in Europe from 1945 to 1949 and who oversaw the Berlin airlift (1897-1978)

   Publicidade ▼

Merriam Webster

ClayClay (klā), n. [AS. clǣg; akin to LG. klei, D. klei, and perh. to AS. clām clay, L. glus, gluten glue, Gr. gloio`s glutinous substance, E. glue. Cf. Clog.]
1. A soft earth, which is plastic, or may be molded with the hands, consisting of hydrous silicate of aluminium. It is the result of the wearing down and decomposition, in part, of rocks containing aluminous minerals, as granite. Lime, magnesia, oxide of iron, and other ingredients, are often present as impurities.

2. (Poetry & Script.) Earth in general, as representing the elementary particles of the human body; hence, the human body as formed from such particles.

I also am formed out of the clay. Job xxxiii. 6.

The earth is covered thick with other clay,
Which her own clay shall cover.
Byron.

Bowlder clay. See under Bowlder. -- Brick clay, the common clay, containing some iron, and therefore turning red when burned. -- Clay cold, cold as clay or earth; lifeless; inanimate. -- Clay ironstone, an ore of iron consisting of the oxide or carbonate of iron mixed with clay or sand. -- Clay marl, a whitish, smooth, chalky clay. -- Clay mill, a mill for mixing and tempering clay; a pug mill. -- Clay pit, a pit where clay is dug. -- Clay slate (Min.), argillaceous schist; argillite. -- Fatty clays, clays having a greasy feel; they are chemical compounds of water, silica, and aluminia, as halloysite, bole, etc. -- Fire clay , a variety of clay, entirely free from lime, iron, or an alkali, and therefore infusible, and used for fire brick. -- Porcelain clay, a very pure variety, formed directly from the decomposition of feldspar, and often called kaolin. -- Potter's clay, a tolerably pure kind, free from iron.

ClayClay, v. t. [imp. & p. p. Clayed (?); p. pr. & vb. n. Claying.]
1. To cover or manure with clay.

2. To clarify by filtering through clay, as sugar.

   Publicidade ▼

Definiciones (más)

definição - Wikipedia

Sinónimos

Ver também

clay (n.)

argillaceous, clayey, cloggy, heavy

Locuções

Alexander S. Clay • Alexander Stephens Clay • Alliance Township, Clay County, Minnesota • American System (Henry Clay program) • Andrew Dice Clay • Ashland, the Henry Clay estate • Barnesville Township, Clay County, Minnesota • Barton-le-Clay • Beijing Shooting Range Clay Target Field • Belair, Clay County, Florida • Black clay • Boulder clay • Bradford Clay • Bryan Clay • C2 Judgement Clay • Canadian Clay and Glass Gallery • Cass-Clay • Cassisus Marcellus Clay • Cassius Clay (abolitionist) • Cassius Marcellus Clay (1810–1903) • Charles Clay • Cholera Monument Grounds and Clay Wood • Clay (disambiguation) • Clay (industrial plasticine) • Clay (moth) • Clay (short story) • Clay Aiken • Clay Armstrong • Clay Banks, Wisconsin • Clay Belt • Clay Bennett • Clay Bertrand • Clay Buchholz • Clay Calvert • Clay Carroll • Clay Center Municipal Airport • Clay Center, Kansas • Clay Center, Nebraska • Clay Center, Ohio • Clay City, Illinois • Clay City, Indiana • Clay Condrey • Clay County • Clay County Electric Cooperative • Clay County, Alabama • Clay County, Arkansas • Clay County, Florida • Clay County, Georgia • Clay County, Illinois • Clay County, Indiana • Clay County, Iowa • Clay County, Kansas • Clay County, Kentucky • Clay County, Minnesota • Clay County, Mississippi • Clay County, Missouri • Clay County, Nebraska • Clay County, North Carolina • Clay County, South Dakota • Clay County, Tennessee • Clay County, Texas • Clay County, West Virginia • Clay Cross Tunnel • Clay Cross railway station • Clay Davenport • Clay Dreslough • Clay Dyer • Clay Evans • Clay Felker • Clay Fighter 63 1/3 • Clay Foster Lee, Jr. • Clay Frisian • Clay Hart • Clay Hensley • Clay High School (Indiana) • Clay Hine • Clay Johnson III • Clay Lee • Clay Mathematics Institute • Clay McHenry (Valiant Comics) • Clay Records • Clay Rogers • Clay Rush • Clay S. Jenkinson • Clay Sampson • Clay Shaw • Clay Shirky • Clay Smith • Clay Township, Butler County, Pennsylvania • Clay Township, Hubbard County, Minnesota • Clay Township, Huntingdon County, Pennsylvania • Clay Township, Lancaster County, Pennsylvania • Clay Township, Michigan • Clay Township, Pennsylvania • Clay Township, Tuscarawas County, Ohio • Clay Wade Bailey Bridge • Clay court • Clay fighter • Clay nail • Clay pigeon • Clay pigeon shooting • Clay pit • Clay pot filter • Clay tablet • Clay, Alabama • Clay, Cassius Marcellus • Clay, Cassius Marcellus (abolitionist) • Clay, James • Clay, Kentucky • Clay, New York • Clay, West Virginia • Clay-body • Clay-colored Thrush • Clay-court specialist • Clay-with-Flints • Clement Claiborne Clay Jr • Clement Clay • Cold as the Clay • Cromwell Township, Clay County, Minnesota • Darcy Clay • Dick Clay • Doctor Clay • E. Clay Shaw, Jr. • Edward Clay • Eglon Township, Clay County, Minnesota • Elkton Township, Clay County, Minnesota • Elmwood Township, Clay County, Minnesota • Expansive clay • Feet of Clay • Felton Township, Clay County, Minnesota • Flowing Township, Clay County, Minnesota • Frederic Clay • Georgetown Township, Clay County, Minnesota • Glyndon Township, Clay County, Minnesota • Goose Prairie Township, Clay County, Minnesota • Green Clay Smith • H. Clay Van Voorhis • Hagen Township, Clay County, Minnesota • Hawley Township, Clay County, Minnesota • Henry Clay Drexler • Henry Clay Frick • Henry Clay Jr • Henry Clay Township, Fayette County, Pennsylvania • Henry Clay Vedder • Highland Grove Township, Clay County, Minnesota • Holy Cross Township, Clay County, Minnesota • Humboldt Township, Clay County, Minnesota • Independence, Clay County, West Virginia • Ingrailed Clay • James Clay (author) • Jars of Clay • Jars of Clay (album) • John Clay • Johnnie Clay • Joseph Clay Stiles Blackburn • Joseph Clay Styles Blackburn • Keene Township, Clay County, Minnesota • Kimmeridge Clay • Kragnes Township, Clay County, Minnesota • Kurtz Township, Clay County, Minnesota • Lacy Clay • Len Clay Stadium • Lower Bostraze China Clay Works • Meilani Clay • Metal clay • Minnesota Clay • Modeling clay • Modelling clay • Moland Township, Clay County, Minnesota • Moorhead Township, Clay County, Minnesota • Morken Township, Clay County, Minnesota • Mount Clay • Nannine Clay Wallis Arboretum • Oakport Township, Clay County, Minnesota • Paffard Keatinge-Clay • Parke Township, Clay County, Minnesota • R. v. Clay • Ramparts of Clay • Red Clay (disambiguation) • Red Clay Consolidated School District • Red Clay Cup • Riverton Township, Clay County, Minnesota • Robert Clay • Robert Clay Allison • SS William Clay Ford • Skree Township, Clay County, Minnesota • Spring Prairie Township, Clay County, Minnesota • Tansem Township, Clay County, Minnesota • The Clay People (album) • The Eleventh Hour (Jars of Clay album) • Thomas Clay McCreery • U.S. Men's Clay Court Championships • Ulen Township, Clay County, Minnesota • Viding Township, Clay County, Minnesota • White Clay Hundred • William Clay Ford II • William Lacy Clay Jr • William Lacy Clay, Jr. • Wm. Lacy Clay

Dicionario analógico


Clay (n.)


clay (n.)

dirt, soil[Hyper.]

loamy[Dérivé]






Wikipedia

Clay

                   
  The Gay Head cliffs in Martha's Vineyard consist almost entirely of clay.

Clay is a general term including many combinations of one or more clay minerals with traces of metal oxides and organic matter.[1] Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure.

Contents

  Formation

  Deforestation for clay extraction in Rio de Janeiro city - Brazil. The picture is of Morro da Covanca - Jacarepaguá.

Clay minerals are typically formed over long periods of time by the gradual chemical weathering of rocks, usually silicate-bearing, by low concentrations of carbonic acid and other diluted solvents. These solvents, usually acidic, migrate through the weathering rock after leaching through upper weathered layers. In addition to the weathering process, some clay minerals are formed by hydrothermal activity. Clay deposits may be formed in place as residual deposits in soil, but thick deposits usually are formed as the result of a secondary sedimentary deposition process after they have been eroded and transported from their original location of formation. Clay deposits are typically associated with very low energy depositional environments such as large lakes and marine basins.

Primary clays, also known as kaolins, are located at the site of formation. Secondary clay deposits have been moved by erosion and water from their primary location.[2]

  Definition

  electron microscope photograph of smectite clay - magnification 23,500

Clays are distinguished from other fine-grained soils by differences in size and mineralogy. Silts, which are fine-grained soils that do not include clay minerals, tend to have larger particle sizes than clays, but there is some overlap in both particle size and other physical properties, and there are many naturally occurring deposits which include silts and also clay. The distinction between silt and clay varies by discipline. Geologists and soil scientists usually consider the separation to occur at a particle size of 2 µm (clays being finer than silts), sedimentologists often use 4-5 μm, and colloid chemists use 1 μm.[1] Geotechnical engineers distinguish between silts and clays based on the plasticity properties of the soil, as measured by the soils' Atterberg Limits. ISO 14688 grades clay particles as being smaller than 2 μm and silts larger.

  Quaternary clay in Estonia.

  Grouping

Depending on the academic source, there are three or four main groups of clays: kaolinite, montmorillonite-smectite, illite, and chlorite. Chlorites are not always considered a clay, sometimes being classified as a separate group within the phyllosilicates. There are approximately 30 different types of "pure" clays in these categories, but most "natural" clays are mixtures of these different types, along with other weathered minerals.

Varve (or varved clay) is clay with visible annual layers, formed by seasonal differences in erosion and organic content. This type of deposit is common in former glacial lakes. When glacial lakes are formed there is very little movement of the water that makes the lake, and these eroded soils settle on the lake bed. This allows such an even distribution on the different layers of clay.[2]

Quick clay is a unique type of marine clay indigenous to the glaciated terrains of Norway, Canada, Northern Ireland, and Sweden. It is a highly sensitive clay, prone to liquefaction, which has been involved in several deadly landslides.

  Historical and modern uses

  Clay layers in a construction site. Dry clay is normally much more stable than sand with regard to excavations.

Clays exhibit plasticity when mixed with water in certain proportions. When dry, clay becomes firm and when fired in a kiln, permanent physical and chemical changes occur. These reactions, among other changes, cause the clay to be converted into a ceramic material. Because of these properties, clay is used for making pottery items, both utilitarian and decorative. Different types of clay, when used with different minerals and firing conditions, are used to produce earthenware, stoneware, and porcelain. Prehistoric humans discovered the useful properties of clay. Some of the earliest pottery sherds recovered are from central Honshu, Japan. They are associated with the Jomon culture and the deposits from which they were recovered have been radiocarbon dated to around 14000BC [3]. Depending on the content of the soil, clay can appear in various colors, from a dull gray to a deep orange-red.

Clay tablets were used as the first known writing medium, inscribed with cuneiform script through the use of a blunt reed called a stylus.

Clays sintered in fire were the first form of ceramic. Bricks, cooking pots, art objects, dishware, and even musical instruments such as the ocarina can all be shaped from clay before being fired. Clay is also used in many industrial processes, such as paper making, cement production, and chemical filtering. Clay is also often used in the manufacture of pipes for smoking tobacco. Until the late 20th century bentonite clay was widely used as a mold binder in the manufacture of sand castings.

Clay, being relatively impermeable to water, is also used where natural seals are needed, such as in the cores of dams, or as a barrier in landfills against toxic seepage (lining the landfill, preferably in combination with geotextiles).[4]

Recent[when?] studies have investigated clay's absorption capacities in various applications, such as the removal of heavy metals from waste water and air purification.

  Medical and agricultural uses

Recent research indicates that various animals visit clay licks periodically to eat from them, apparently because either the clay contains one or more antidotes for the various poisons in plants and seeds the animals eat, or because the clay coats the animals' guts to protect them from those substances.[citation needed]

A traditional use of clay as medicine goes back to prehistoric times. An example is Armenian bole, which is used to soothe an upset stomach, similar to the way parrots (and later, humans) in South America originally used it.[5] Kaolin clay and attapulgite have been used as anti-diarrheal medicines.

  Clay as a building material

Clay is one of the oldest building materials on Earth, among other ancient, naturally-occurring geologic materials such as stone and organic materials like wood. Between one-half and two-thirds of the world's population, in traditional societies as well as developed countries, still live or work in a building made with clay as an essential part of its load-bearing structure. Also a primary ingredient in many natural building techniques, clay is used to create adobe, cob, cordwood, and rammed earth structures and building elements such as wattle and daub, clay plaster, clay render case, clay floors and clay paints.

  See also

  Footnotes

  References

  • Ehlers, Ernest G. and Blatt, Harvey (1982). 'Petrology, Igneous, Sedimentary, and Metamorphic' San Francisco: W.H. Freeman and Company. ISBN 0-7167-1279-2.
  • Hillier S. (2003) Clay Mineralogy. pp 139–142 In: Middleton G.V., Church M.J., Coniglio M., Hardie L.A. and Longstaffe F.J.(Editors) Encyclopedia of sediments and sedimentary rocks. Kluwer Academic Publishers, Dordrecht.

  External links

   
               

 

todas as traduções do Clay


Conteùdo de sensagent

  • definição
  • sinónimos
  • antónimos
  • enciclopédia

 

4100 visitantes em linha

calculado em 0,124s