red clayn.

Brit.

/ˌrɛd ˈkleɪ/, U.S.

/ˌrɛd ˈkleɪ/

Forms: see red adj. and n. and clay n.

Origin: Formed within English, by compounding. Etymons: red adj., clay n.

Etymology: < red adj. + clay n.

Clay coloured red by its iron content; spec. (a) soil with a high content of red clay; (b) a red or reddish-brown fine-grained deposit covering large areas of the ocean floor, containing windblown particles, meteoric and volcanic dust and debris, and insoluble organic remains.

ΘΚΠ

the world > the earth > structure of the earth > constituent materials > clay > [noun] > other clays

red clayc1475

urry1669

blae1724

cat-dirt1747

iron clay1750

till1762

mulatto clay1788

oak-tree clay1794

porcelain jasper1794

porcellanite1794

Karoo ground1836

plinthite1836

papa1851

Bradford clay1858

Indianaite1868

sinopite1868

hydrobiotite1881

pampas-clay1885

byon1892

potato clay1896

bentonite1898

quick clay1901

gumbotil1916

a1387 J. Trevisa tr. R. Higden Polychron. (St. John's Cambr.) (1869) II. 17 (MED) Þere is also white cley and reed.]

c1475 ( Surg. Treat. in MS Wellcome 564 f. 107^v (MED) Argille hem, þat is to seie, putte hem in reed cley & brenne hem in an ouene.

?1523 J. Fitzherbert Bk. Husbandry f. i There is many maner of groundes and soyle. Some white cley, some reed cley, some grauell or chilturfe.

1698 Philos. Trans. (Royal Soc.) 20 311 I have..lately procur'd a Roman Pottle from Aldbrough, which is of the Red Clay.

1733 W. Ellis Chiltern & Vale Farming 9 Red Clays..stand in the front..for..Tuffness, Coldness, and Moistness.

1784 J. F. D. Smyth Tour U.S.A. I. 81 I cut a most wretched figure being daubed from head to foot with red clay.

1827 J. L. Williams View W. Florida 89 In the gulf [of Mexico], the..red clay lands approach within eighteen or twenty miles of the coast.

1874 Proc. Royal Soc. 1873–4 22 427 The bottom consists of ‘Globigerina-ooze’ or of the red clay produced by the decomposition of the shells of Foraminifera.

1926 Jrnl. Geol. (Chicago) 34 140 The terra rosea of the Istrian Peninsula, Dalmatia, and Greece consists of red clay, residual from a limestone basement.

1961 Nature 14 Oct. 156/2 At the point where the corer struck the sea bed the surface sediment is a red clay.

2007 Soil & Tillage Res. 94 134/2 The prevailing soils have a loam and clay loam texture and have developed from loose, easily eroded, quaternary red clays.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online June 2022).

单词	red clay
释义	red clayn. Brit. /ˌrɛd ˈkleɪ/, U.S. /ˌrɛd ˈkleɪ/ Forms: see red adj. and n. and clay n. Origin: Formed within English, by compounding. Etymons: red adj., clay n. Etymology: < red adj. + clay n. Clay coloured red by its iron content; spec. (a) soil with a high content of red clay; (b) a red or reddish-brown fine-grained deposit covering large areas of the ocean floor, containing windblown particles, meteoric and volcanic dust and debris, and insoluble organic remains. ΘΚΠ the world > the earth > structure of the earth > constituent materials > clay > [noun] > other clays red clayc1475 urry1669 blae1724 cat-dirt1747 iron clay1750 till1762 mulatto clay1788 oak-tree clay1794 porcelain jasper1794 porcellanite1794 Karoo ground1836 plinthite1836 papa1851 Bradford clay1858 Indianaite1868 sinopite1868 hydrobiotite1881 pampas-clay1885 byon1892 potato clay1896 bentonite1898 quick clay1901 gumbotil1916 a1387 J. Trevisa tr. R. Higden Polychron. (St. John's Cambr.) (1869) II. 17 (MED) Þere is also white cley and reed.] c1475 ( Surg. Treat. in MS Wellcome 564 f. 107^v (MED) Argille hem, þat is to seie, putte hem in reed cley & brenne hem in an ouene. ?1523 J. Fitzherbert Bk. Husbandry f. i There is many maner of groundes and soyle. Some white cley, some reed cley, some grauell or chilturfe. 1698 Philos. Trans. (Royal Soc.) 20 311 I have..lately procur'd a Roman Pottle from Aldbrough, which is of the Red Clay. 1733 W. Ellis Chiltern & Vale Farming 9 Red Clays..stand in the front..for..Tuffness, Coldness, and Moistness. 1784 J. F. D. Smyth Tour U.S.A. I. 81 I cut a most wretched figure being daubed from head to foot with red clay. 1827 J. L. Williams View W. Florida 89 In the gulf [of Mexico], the..red clay lands approach within eighteen or twenty miles of the coast. 1874 Proc. Royal Soc. 1873–4 22 427 The bottom consists of ‘Globigerina-ooze’ or of the red clay produced by the decomposition of the shells of Foraminifera. 1926 Jrnl. Geol. (Chicago) 34 140 The terra rosea of the Istrian Peninsula, Dalmatia, and Greece consists of red clay, residual from a limestone basement. 1961 Nature 14 Oct. 156/2 At the point where the corer struck the sea bed the surface sediment is a red clay. 2007 Soil & Tillage Res. 94 134/2 The prevailing soils have a loam and clay loam texture and have developed from loose, easily eroded, quaternary red clays. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online June 2022). < n.c1475
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