black diamondn.

Brit.

/ˌblak ˈdʌɪ(ə)mənd/, U.S.

/ˌblæk ˈdaɪ(ə)mən(d)/

Forms: see black adj. and diamond n.

Origin: Formed within English, by compounding. Etymons: black adj., diamond n.

Etymology: < black adj. + diamond n. With sense 1 compare French diamant noir (1609 or earlier).

1. A diamond of a black, dark grey, or dark brown colour, esp. an uncut one. Also as a mass noun. Cf. carbon n. 3, carbonado n.²

ΘΚΠ

society > occupation and work > materials > raw material > gem or precious stone > diamond > [noun] > other types of diamond

violastrec1400

lasque1678

black diamond1689

carbonadoa1853

carbonate1860

carbon1869

river stone1873

fish-eye1882

white1895

1689 R. Hooke Diary 2 July in R. T. Gunther Early Sci. in Oxf. (1935) X. 133 Marlow get black Diamant.

1702 Famous & Delightful Hist. Fortunatus (ed. 4) I. iv. 16 Many of his [jewels] exceeded them, not only in lustre, but in vertue..especially one locket of black diamonds which he had purchased of a Jew.

1763 W. Lewis Commercium Philosophico-technicum 321 A black diamond cut and set in a ring.

1830 Morning Walks x. 282 Black diamonds are much prized by collectors.

1867 Jrnl. Soc. Arts 15 349 The boring machine..is composed of a steel ring set with black diamonds.

1903 Westm. Gaz. 6 June 9/1 ‘Black diamonds’..technically known as ‘carbons’.

1948 R. M. Pearl Pop. Gemol. iii. 96 Carbonado or black diamond also has an aggregate structure but of a different kind and is highly valued for drills; it is found almost exclusively in Brazil.

2005 Independent 21 Sept. 11/1 A rare black diamond..is to go on public display for the first time in Britain.

2. figurative. Chiefly in plural. A piece of coal, spec. anthracite.In earliest use in jocular references to coal merchants.

ΘΚΠ

society > occupation and work > materials > fuel > coal or types of coal > [noun]

coal1253

sea-coal1253

pit-coal1483

cannel1541

earth coala1552

horse coal1552

Newcastle coal1552

stone-coal1585

cannel coal1587

parrot1594

burn-coal1597

lithanthrax1612

stony coal1617

Welsh coala1618

land-coala1661

foot coal1665

peacock coal1686

rough coal1686

white coal1686

heathen-coalc1697

coal-stone1708

round1708

stone-coal1708

bench-coal1712

slipper coal1712

black coal1713

culm1742

rock coal1750

board coal1761

Bovey coal1761

house coal1784

mineral coal1785

splint1789

splint coal1789

jet coal1794

anthracite1797

wood-coal1799

blind-coal1802

black diamond1803

silk-coal1803

glance-coal1805

lignite1808

Welsh stone-coal1808

soft1811

spout coals1821

spouter1821

Wallsend1821

brown coal1833

paper coal1833

steam-coal1850

peat-coal1851

cherry-coal1853

household1854

sinter coal1854

oil coal1856

raker1857

Kilkenny coal1861

Pottery coal1867

silkstone1867

block coal1871

admiralty1877

rattlejack1877

bunker1883

fusain1883

smitham1883

bunker coal1885

triping1886

trolley coal1890

kibble1891

sea-borne1892

jet1893

steam1897

sack coal1898

Welsh1898

navigation coal1900

Coalite1906

clarain1919

durain1919

vitrain1919

single1921

kolm1930

hards1956

the world > the earth > minerals > types of mineral > hydrocarbon minerals > [noun] > coal

coal1253

main coal1708

black diamond1803

1773 Public Advertiser 13 Oct. 1/4 Well, Mr. Black Diamond, the Coal-heaver, you have ruined the Interest of two unsuspecting Friends in their Election for Mayor.]

1773 London Evening Post 30 Oct.–2 Nov. 1/4 Little Deputy Judd, the black diamond merchant, the chicken butcher, and Saint Michael, may bluster as much as they please.

1803 Bury & Norwich Post 2 Mar. 2/2 Some more of the dealers in black diamonds were last week hauled over the coals.

1860 R. W. Emerson Wealth in Conduct of Life 76 Coal..We may well call it black diamonds. Every basket is power and civilization.

1892 N. Amer. Rev. 154 (Advertiser) 17 There is no freight that pays better to handle than anthracite coal. Black diamonds it is called, and whoever handles it becomes rich.

1940 Railroad Mag. Apr. 60/2 Engine No. 1, the only motive power on the Highland, was a voracious coal-eater, consuming black diamonds at the rate of $320 a month.

1990 V. Klinkenborg Last Fine Time iii. 76 A black diamond is of course a lump of coal.

3. North American. A symbol denoting a ski run suitable only for advanced users; a ski run of this type. Frequently attributive. Cf. black adj. 2g.

ΘΚΠ

society > leisure > sport > types of sport or game > winter sports > skiing > [noun] > ski slope or run

piste1917

nursery slope1924

ski run1924

ski slope1934

schuss1937

fall line1938

bunny slope1954

run1956

black diamond1969

traverse1969

slope1972

ski ramp1973

dry slope1974

motorway1979

off-piste1986

1969 Ski Area Managem. Fall 6 A black diamond indicates a ‘most difficult’ trail.

1994 Denver Post 20 Nov. a18 (advt.) Whether you're hammering the black diamonds or gliding the tracks, when you go for the snow, we've got what you need.

1998 Fast Company Aug. 173/1 Jacob snowboards the black diamond slopes at Lake Tahoe.

2005 New Yorker 17 Oct. 140/1 A steep, ‘black diamond’ run of nine hundred feet.

This is a new entry (OED Third Edition, September 2011; most recently modified version published online December 2021).

单词	black diamond
释义	black diamondn. Brit. /ˌblak ˈdʌɪ(ə)mənd/, U.S. /ˌblæk ˈdaɪ(ə)mən(d)/ Forms: see black adj. and diamond n. Origin: Formed within English, by compounding. Etymons: black adj., diamond n. Etymology: < black adj. + diamond n. With sense 1 compare French diamant noir (1609 or earlier). 1. A diamond of a black, dark grey, or dark brown colour, esp. an uncut one. Also as a mass noun. Cf. carbon n. 3, carbonado n.² ΘΚΠ society > occupation and work > materials > raw material > gem or precious stone > diamond > [noun] > other types of diamond violastrec1400 lasque1678 black diamond1689 carbonadoa1853 carbonate1860 carbon1869 river stone1873 fish-eye1882 white1895 1689 R. Hooke Diary 2 July in R. T. Gunther Early Sci. in Oxf. (1935) X. 133 Marlow get black Diamant. 1702 Famous & Delightful Hist. Fortunatus (ed. 4) I. iv. 16 Many of his [jewels] exceeded them, not only in lustre, but in vertue..especially one locket of black diamonds which he had purchased of a Jew. 1763 W. Lewis Commercium Philosophico-technicum 321 A black diamond cut and set in a ring. 1830 Morning Walks x. 282 Black diamonds are much prized by collectors. 1867 Jrnl. Soc. Arts 15 349 The boring machine..is composed of a steel ring set with black diamonds. 1903 Westm. Gaz. 6 June 9/1 ‘Black diamonds’..technically known as ‘carbons’. 1948 R. M. Pearl Pop. Gemol. iii. 96 Carbonado or black diamond also has an aggregate structure but of a different kind and is highly valued for drills; it is found almost exclusively in Brazil. 2005 Independent 21 Sept. 11/1 A rare black diamond..is to go on public display for the first time in Britain. 2. figurative. Chiefly in plural. A piece of coal, spec. anthracite.In earliest use in jocular references to coal merchants. ΘΚΠ society > occupation and work > materials > fuel > coal or types of coal > [noun] coal1253 sea-coal1253 pit-coal1483 cannel1541 earth coala1552 horse coal1552 Newcastle coal1552 stone-coal1585 cannel coal1587 parrot1594 burn-coal1597 lithanthrax1612 stony coal1617 Welsh coala1618 land-coala1661 foot coal1665 peacock coal1686 rough coal1686 white coal1686 heathen-coalc1697 coal-stone1708 round1708 stone-coal1708 bench-coal1712 slipper coal1712 black coal1713 culm1742 rock coal1750 board coal1761 Bovey coal1761 house coal1784 mineral coal1785 splint1789 splint coal1789 jet coal1794 anthracite1797 wood-coal1799 blind-coal1802 black diamond1803 silk-coal1803 glance-coal1805 lignite1808 Welsh stone-coal1808 soft1811 spout coals1821 spouter1821 Wallsend1821 brown coal1833 paper coal1833 steam-coal1850 peat-coal1851 cherry-coal1853 household1854 sinter coal1854 oil coal1856 raker1857 Kilkenny coal1861 Pottery coal1867 silkstone1867 block coal1871 admiralty1877 rattlejack1877 bunker1883 fusain1883 smitham1883 bunker coal1885 triping1886 trolley coal1890 kibble1891 sea-borne1892 jet1893 steam1897 sack coal1898 Welsh1898 navigation coal1900 Coalite1906 clarain1919 durain1919 vitrain1919 single1921 kolm1930 hards1956 the world > the earth > minerals > types of mineral > hydrocarbon minerals > [noun] > coal coal1253 main coal1708 black diamond1803 1773 Public Advertiser 13 Oct. 1/4 Well, Mr. Black Diamond, the Coal-heaver, you have ruined the Interest of two unsuspecting Friends in their Election for Mayor.] 1773 London Evening Post 30 Oct.–2 Nov. 1/4 Little Deputy Judd, the black diamond merchant, the chicken butcher, and Saint Michael, may bluster as much as they please. 1803 Bury & Norwich Post 2 Mar. 2/2 Some more of the dealers in black diamonds were last week hauled over the coals. 1860 R. W. Emerson Wealth in Conduct of Life 76 Coal..We may well call it black diamonds. Every basket is power and civilization. 1892 N. Amer. Rev. 154 (Advertiser) 17 There is no freight that pays better to handle than anthracite coal. Black diamonds it is called, and whoever handles it becomes rich. 1940 Railroad Mag. Apr. 60/2 Engine No. 1, the only motive power on the Highland, was a voracious coal-eater, consuming black diamonds at the rate of $320 a month. 1990 V. Klinkenborg Last Fine Time iii. 76 A black diamond is of course a lump of coal. 3. North American. A symbol denoting a ski run suitable only for advanced users; a ski run of this type. Frequently attributive. Cf. black adj. 2g. ΘΚΠ society > leisure > sport > types of sport or game > winter sports > skiing > [noun] > ski slope or run piste1917 nursery slope1924 ski run1924 ski slope1934 schuss1937 fall line1938 bunny slope1954 run1956 black diamond1969 traverse1969 slope1972 ski ramp1973 dry slope1974 motorway1979 off-piste1986 1969 Ski Area Managem. Fall 6 A black diamond indicates a ‘most difficult’ trail. 1994 Denver Post 20 Nov. a18 (advt.) Whether you're hammering the black diamonds or gliding the tracks, when you go for the snow, we've got what you need. 1998 Fast Company Aug. 173/1 Jacob snowboards the black diamond slopes at Lake Tahoe. 2005 New Yorker 17 Oct. 140/1 A steep, ‘black diamond’ run of nine hundred feet. This is a new entry (OED Third Edition, September 2011; most recently modified version published online December 2021). < n.1689
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