请输入您要查询的英文单词:

 

单词 black ash
释义

black ashn.1

Brit. /ˌblak ˈaʃ/, U.S. /ˌblæk ˈæʃ/
Origin: Formed within English, by compounding. Etymons: black adj., ash n.1
Etymology: < black adj. + ash n.1 The reason for the name is uncertain: it may refer to the tree's dark brown heartwood, or it may refer to the appearance of the leaves, in contrast to those of the white ash (see white ash n.1).
North American.
A North American ash, Fraxinus nigra (formerly called F. sambucifolia), found in wetlands in the north-eastern United States and eastern Canada; (also) the timber of this tree, which can be separated into flexible strips by pounding and is used in basket-making and cooperage. Also called hoop-ash, swamp ash.
ΘΚΠ
the world > plants > particular plants > trees and shrubs > tree or shrub groups > ash and allies > [noun]
ashc700
fraynec1325
wood-browna1400
wild ash1552
white ash1578
manna tree1665
black ash1673
white ash1683
water ash1709
manna ash1715
hoop-ash1763
red ash1773
shrew-ash1776
blue ash1783
swamp ash1794
weeping ash1807
green ash1810
cockscomb ash1850
Oregon ash1857
1673 in Hist. Coll. Essex Inst. (1864) VI. 178/2 A forked Black ash which is alsoe osmund trask his bound.
1728 in Rec. Early Hist. Boston (1883) III. 222 We are of Opinion That no Popler,..Black ash, Basswood, or Ceder Shall be Corded up.
1785 M. Cutler in Mem. Amer. Acad. Arts & Sci. 1 492 Fraxinus..The White Ash. The Red Ash. The Black Ash. The Prickley Ash.
1842 Z. Thompson Hist. Vermont i. 211 Black ash. Fraxinus sambucifolia..is sometimes called Swamp Ash.
1872 1st Rep. Vermont State Board Agric. 1871–2 154 An experiment had been tried by a Cornwall farmer, packing butter in spruce, oak and black ash tubs.
1927 A. C. Parker Indian How Bk. i. xviii. 80 The common basket splint requires a search for a good black ash log, which must be..skinned of its bark and then pounded over its entire surface.
1967 Humboldt (Iowa) Independent 28 Oct. 3/4 The black ash is a lower flood plain tree which reaches a height of 50-70 feet and has a rounded or oval crown.
2007 M. Williams Identifying Trees 138 Black Ash has been used for centuries to make woven baskets, barrel hoops, and chair bottoms.
This entry has been updated (OED Third Edition, September 2011; most recently modified version published online December 2021).

black ashn.2

Brit. /ˌblak ˈaʃ/, U.S. /ˌblæk ˈæʃ/
Origin: Formed within English, by compounding. Etymons: black adj., ash n.2
Etymology: < black adj. + ash n.2
Chemistry. Now historical.
In the manufacture of sodium carbonate by the Leblanc process: a mixture of sodium carbonate and calcium sulphide formed at an intermediate stage, which is washed (lixiviated) with water to obtain the pure carbonate.
ΘΚΠ
the world > matter > chemistry > organic chemistry > organic salts > [noun] > carbonates
anatron1706
carbonate1788
marine alkali1791
black ash1803
semi-carbonate1808
oxycarbonate1819
potash1823
hydrocarbonate1843
magnesium carbonate1871
thiocarbonate1883
polycarbonate1886
1803 Repertory of Arts 2nd Ser. 4 2 How Barilla and Kelp is to be prepared for Soap-making... I separate the neutral salts contained in soap-makers spent lie, their salts prepared from spent lie, and the black ash prepared from their salts or spent lie.
1841 Mechanics' Mag. 4 Dec. 448/2 The masses of black ash, or impure carbonate of soda,..are placed in layers of about 3 or 4 inches deep in a close vessel of stone or iron.
1884 A. Watt Art of Soap-making 50 The leys are made from..black ash, the impurities in which give the mottled or marbled ‘strike’ for which this variety of soap is famed.
1922 T. M. Lowry Inorg. Chem. xxxii. 570 Manufacture of soda by the Leblanc Process... Black-ash Process... The product is known as black ash.
1949 Paper Making (Brit. Paper & Board Makers' Assoc.) (1950) iv. 65 Formerly the black ash was leached in tanks with hot water, to dissolve out the sodium carbonate.
2003 K. M. Dunn Caveman Chem. xx. 252 Bejeezical carbon dioxide flies the coop leaving black ash, a mixture of sodium carbonate, calcium sulfide, and residual coal and limestone.
This is a new entry (OED Third Edition, September 2011; most recently modified version published online December 2021).
<
n.11673n.21803
随便看

 

英语词典包含1132095条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/9 17:16:51