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单词 brick clay
释义

brick clayn.

Brit. /ˈbrɪ(k) kleɪ/, U.S. /ˈbrɪk ˌkleɪ/
Origin: Formed within English, by compounding. Etymons: brick n.1, clay n.
Etymology: < brick n.1 + clay n. Compare earlier brick earth n.
Clay suitable for making bricks.
ΘΚΠ
the world > the earth > structure of the earth > constituent materials > clay > [noun] > suitable for bricks
brick clay1688
Windsor loam1747
pot earth1766
brick earth1816
adobe1826
dobe1838
doughboy1856
society > occupation and work > materials > raw material > clay > [noun] > for making bricks
brick earth1640
brick clay1688
Windsor loam1747
adobe1826
1688 J. Harrison Let. 9 Sept. in R. Boyle Corr. (2001) VI. 268 This Hostile Glebe is distinguished commonly by Mechanicall men into two sorts, to wit Tile clay, and that whereof they make Brick. Brick clay is often called Loome by those that work on it.
1747 Philos. Trans. (Royal Soc.) 44 558 They [sc. ancient Moulds] are made of a smooth Pot, or rather Brick-Clay.
1790 T. Wedgwood Let. 26 Nov. in F. Doherty 18th-cent. Intellect. Friendship (1986) 265 As to the clay, the common brick clay will certainly answer every purpose of a finer sort—provided it be free from putrid vegetable or animal matter.
1837 Penny Cycl. VII. 245/2 Brick clay..lies in abundance upon the London clay.
1866 B. J. Lossing Hudson xi. 206 Its banks yield some of the finest brick-clay in the country.
1944 W. Morgan in R. Greenhalgh Pract. Builder ix. 309/2 All bricks, with a few exceptions,..are manufactured from brick clays, or shales, which consist essentially of silica and alumina and contain impurities such as oxides of iron, and chalk (or limestone).
2011 Philos. Trans. (Royal Soc.) A. 369 1065 Quarrying, first for building stone, then later for brick clay, aggregate and cement manufacture, has left large-scale areas of worked ground.
This entry has been updated (OED Third Edition, June 2019; most recently modified version published online December 2021).

> as lemmas

brick clay
Clay consists mainly of aluminium silicate, and is derived mostly from the decomposition of feldspathic rocks. The various beds are distinguished geologically as boulder clay, Kimmeridge clay, London clay, Oxford clay, Purbeck clay, etc. Particular kinds of clay are known as brick clay, fatty clay, plastic clay, porcelain clay, and potter's clay; pipe-clay, etc. Cf. fireclay n.extracted from clayn.
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n.1688
as lemmas
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