watershedn.¹

Brit.

/ˈwɔːtəʃɛd/, U.S.

/ˈwɔdərˌʃɛd/,

/ˈwɑdərˌʃɛd/

Origin: Formed within English, by compounding; perhaps modelled on a German lexical item. Etymons: water n., shed n.¹

Etymology: < water n. + shed n.¹, perhaps after German Wasserscheide (14th cent.). Compare Dutch waterscheiding (1554).In sense 2 perhaps by association with shed v.¹ 4d.

a. The line separating the waters flowing into different rivers or river basins; a narrow elevated tract of ground between two drainage areas; a water-parting.

ΘΚΠ

the world > the earth > land > landscape > high land > ridge > [noun] > dividing

shodec1330

shed1530

height of land1725

watershed1764

water shear1765

ridge1773

divide1807

water-parting1837

coteau1839

1764 J. Burton Present State Navigation Thames 7 The distribution of sewage over cultivable land ought to commence everywhere at the summit of every water-shed.

1839 C. Darwin in R. Fitzroy & C. Darwin Narr. Surv. Voy. H.M.S. Adventure & Beagle III. xxi. 528 The line of watershed, which divides the inland streams from those of the coast, has an elevation of about 3000 feet.

1850 Times 16 Nov. 5/2 In order to satisfy themselves as to the amount of supply furnished by the sources in question, the Board of Health deputed Mr. Rammell to survey the various lines of watershed.

1880 A. Geikie Elem. Lessons Physical Geogr. (new ed.) iv. 257 The watershed of a country or continent is thus a line which divides the flow of the brooks and rivers on two opposite slopes.

1928 B. Spencer Wanderings in Wild Austral. 867 The high ground..in these parts forms really the line of watershed.

1967 Bull. Entomol. Res. 57 227 The high veld of the main Rhodesian watershed, which lies between the Zambesi and Sabi-Limpopo drainages.

2005 V. Hyvärinen & J. Kajander in M. Seppälä Physical Geogr. Fennoscandia (2008) viii. 137/1 The principal watershed in Fennoscandia may be considered to be the one between the Atlantic Ocean..and the Baltic Sea.

b. figurative. A turning point (in history, affairs, a person's life, etc.); a crucial time or occurrence.

ΘΚΠ

the world > time > a suitable time or opportunity > [noun] > critical or decisive moment

articlea1398

prick?c1422

crise?1541

push1563

in the nick1565

jump1598

concurrence1605

cardo1609

(the) nick of time (also occasionally opportunity, etc.)1610

edgea1616

climacterical1628

climacteric1633

in the nick-time1650

moment1666

turning-point1836

watershed1854

psychological moment1871

psychical moment1888

moment of truth1932

crunch1939

cruncher1947

high noon1955

break point1959

defining moment1967

midnight1976

1854 Princeton Rev. Oct. 606 In our position, on the true watershed of nations and of history, we may in truth exclaim, India is west of us; and thitherward the course of history is pointing.

1878 H. W. Longfellow Kéramos i. 87 Midnight! the outpost of advancing day!.. The watershed of Time, from which the streams of Yesterday and To-morrow take their way.

1893 Nation (N.Y.) 3 Aug. 87/1 That resolution marks the water-shed of our Revolutionary politics.

1921 Lyceum Mag. Dec. 16/1 That one lecture served as a sort of a watershed in my life.

1971 ‘R. Macdonald’ Underground Man vii. 47 She sounded as if she had crossed a watershed in her life, beyond which nothing good could happen.

2013 P. Jackson Beyond Balance of Power Introd. 8 The year 1914..is usually treated, along with 1789, as a great watershed of the modern era.

c. British. Often with the. The time in the evening after which programmes that are regarded as unsuitable for children are broadcast on television.Earliest in attributive use.

ΚΠ

1962 B.B.C. Handbk. 32 The BBC's..new 9.30 p.m. watershed policy, its intention to distinguish those programmes which it thinks unsuitable..for children.

1963 Television Bill in Hansard Lords 9 July 1299/2 Both the B.B.C. and the I.T.A. already claim to recognise a ‘watershed’—perhaps I can call it that—in programmes, before which they should not, in general, be unsuitable for children.

1981 B. Paulu Television & Radio in United Kingdom xvii. 310 The questions of family insecurity, marital infidelity, and sex are more difficult to resolve. Most programmes emphasizing these topics are scheduled after the Watershed hour of 9 p.m.

2013 Daily Tel. 27 Feb. 3/4 Double entendres such as ‘jugs’ and ‘melons’ are acceptable before the watershed, the BBC Trust has ruled, but references to threesomes, tantric sex and ‘slutty Sundays’ are more ‘questionable’.

2. A structure or object which is shaped (usually sloped) so that water flows to and falls from its edges. Now somewhat rare.

ΘΚΠ

the world > action or operation > safety > protection or defence > refuge or shelter > [noun] > shelter > a shelter > against weather or storms

screen1538

tent1572

shelter1585

sconce1591

shade1624

bothy1750

breakwind1823

watershed1831

society > inhabiting and dwelling > inhabited place > a building > parts of building > wall of building > [noun] > structures for throwing off rainwater

water board1372

water table1428

water tabling1520

weatherboard1568

weather-spar1632

throat1736

weathering1739

creasing1823

weather-table1839

dashboard1881

watershed1886

waterboarding1927

1831 Reg. Pennsylvania 6 Aug. 93/2 The decks shall be covered in with a perfect water-shed, like the roof of a house.

1881 R. G. White Eng. Without & Within xiv. 319 The great wheel caught my umbrella, which was twisted out of my hand in a twinkling... I picked up my wounded water-shed, and returned with it to Burlington Arcade.

1886 Trans. Royal Inst. Brit. Architects 2 79 Nothing indicates the nature of the water-shed. It may have been some description of thatch; but more probably I think of wood shingle.

1920 Railway Rev. 5 June 911/2 The galvanized metal sheets were..fitted into suitable grooves in the ridgepole and rafters, providing altogether a fairly effective watershed.

2008 S. Arnoldussen App. to Living Landscape App. i. 17 A drinking pond for animals was created, that was fed by the rainwater from the northern roof's watershed.

3. Now chiefly North American. (a) The slope down which the water flows from a water-parting; (b) the gathering ground of a river system; a catchment area or drainage basin.

ΘΚΠ

the world > the earth > land > land mass > shore or bank > land near river > [noun] > catchment area

valleyc1790

basin1804

river basin1824

watershed1839

catchment1844

catchment basin1844

drainage1866

gathering-ground1877

drainage-basin1882

catchment area2001

the world > the earth > land > landscape > high land > slope > [noun] > water-bearing

waterfall1522

watershed1839

1839 R. I. Murchison Silurian Syst. i. xxxvii. 512 To the south-west of Kington the lower beds of the Old Red Sandstone..have been the sub-aqueous water-shed, down which the coarse detritus has been swept.

1865 Hansard's Parl. Deb. 3rd Ser. 177 1333 It could easily be inferred..how very large the extent of the Thames watershed would be.

1877 T. H. Huxley Physiography 18 To avoid all ambiguity it is perhaps best to set aside the original meaning of ‘watershed’, and employ the term to denote the slope along which the water flows, while the expression ‘water-parting’ is employed for the summit of this slope.

1913 L. White Catskill Water Supply N.Y. 17 The Croton watershed would in a few years be drawn on to its full capacity.

1936 T. W. Norcross Handbk. Erosion Control Engin. iii. Such factors as density of vegetative cover, kind of soil,..slope of the watershed, and intensity of the rainfall—all have a somewhat indeterminate effect on the run-off factor.

1971 J. McPhee Encounters with Archdruid iii. 161 There are any number of excellent damsites..most notably in the immense, arid watershed of the Colorado.

1996 A. Outwater Water 64 The sluggish underground river moves down the watershed.

2003 Canad. Geographic Trav. & Adventure Winter 7/1 Trail down the mellow Continental Divide, and..let your skis kick snow into both Atlantic and Pacific watersheds.

Compounds

General attributive (in sense 1b), as watershed event, watershed moment, watershed year, etc.

ΚΠ

1920 Congregationalist & Advance 22 Jan. 18/2 Failure on the part of either executive or Senate to realize that it is a ‘watershed moment’ in history.

1968 Lowell (Mass.) Sun 30 Apr. 4/5 If this is a true watershed period in history,..it is all the more reason why negotiations with the Communists should be regarded as a great historical event.

1987 Wilson Libr. Bull. Mar. 63/2 The arrangement allows browsers to discover the watershed events of a director's or actor's career.

2002 Imperial Oil Rev. Winter 25/1 The early 1990s were watershed years for Toronto's race relations.

2011 Daily Tel. 18 May 7/1 The Queen's watershed tour of Ireland began as planned yesterday.

This entry has been updated (OED Third Edition, September 2015; most recently modified version published online December 2021).

单词	watershed
释义	watershedn.¹ Brit. /ˈwɔːtəʃɛd/, U.S. /ˈwɔdərˌʃɛd/, /ˈwɑdərˌʃɛd/ Origin: Formed within English, by compounding; perhaps modelled on a German lexical item. Etymons: water n., shed n.¹ Etymology: < water n. + shed n.¹, perhaps after German Wasserscheide (14th cent.). Compare Dutch waterscheiding (1554).In sense 2 perhaps by association with shed v.¹ 4d. 1. a. The line separating the waters flowing into different rivers or river basins; a narrow elevated tract of ground between two drainage areas; a water-parting. ΘΚΠ the world > the earth > land > landscape > high land > ridge > [noun] > dividing shodec1330 shed1530 height of land1725 watershed1764 water shear1765 ridge1773 divide1807 water-parting1837 coteau1839 1764 J. Burton Present State Navigation Thames 7 The distribution of sewage over cultivable land ought to commence everywhere at the summit of every water-shed. 1839 C. Darwin in R. Fitzroy & C. Darwin Narr. Surv. Voy. H.M.S. Adventure & Beagle III. xxi. 528 The line of watershed, which divides the inland streams from those of the coast, has an elevation of about 3000 feet. 1850 Times 16 Nov. 5/2 In order to satisfy themselves as to the amount of supply furnished by the sources in question, the Board of Health deputed Mr. Rammell to survey the various lines of watershed. 1880 A. Geikie Elem. Lessons Physical Geogr. (new ed.) iv. 257 The watershed of a country or continent is thus a line which divides the flow of the brooks and rivers on two opposite slopes. 1928 B. Spencer Wanderings in Wild Austral. 867 The high ground..in these parts forms really the line of watershed. 1967 Bull. Entomol. Res. 57 227 The high veld of the main Rhodesian watershed, which lies between the Zambesi and Sabi-Limpopo drainages. 2005 V. Hyvärinen & J. Kajander in M. Seppälä Physical Geogr. Fennoscandia (2008) viii. 137/1 The principal watershed in Fennoscandia may be considered to be the one between the Atlantic Ocean..and the Baltic Sea. b. figurative. A turning point (in history, affairs, a person's life, etc.); a crucial time or occurrence. ΘΚΠ the world > time > a suitable time or opportunity > [noun] > critical or decisive moment articlea1398 prick?c1422 crise?1541 push1563 in the nick1565 jump1598 concurrence1605 cardo1609 (the) nick of time (also occasionally opportunity, etc.)1610 edgea1616 climacterical1628 climacteric1633 in the nick-time1650 moment1666 turning-point1836 watershed1854 psychological moment1871 psychical moment1888 moment of truth1932 crunch1939 cruncher1947 high noon1955 break point1959 defining moment1967 midnight1976 1854 Princeton Rev. Oct. 606 In our position, on the true watershed of nations and of history, we may in truth exclaim, India is west of us; and thitherward the course of history is pointing. 1878 H. W. Longfellow Kéramos i. 87 Midnight! the outpost of advancing day!.. The watershed of Time, from which the streams of Yesterday and To-morrow take their way. 1893 Nation (N.Y.) 3 Aug. 87/1 That resolution marks the water-shed of our Revolutionary politics. 1921 Lyceum Mag. Dec. 16/1 That one lecture served as a sort of a watershed in my life. 1971 ‘R. Macdonald’ Underground Man vii. 47 She sounded as if she had crossed a watershed in her life, beyond which nothing good could happen. 2013 P. Jackson Beyond Balance of Power Introd. 8 The year 1914..is usually treated, along with 1789, as a great watershed of the modern era. c. British. Often with the. The time in the evening after which programmes that are regarded as unsuitable for children are broadcast on television.Earliest in attributive use. ΚΠ 1962 B.B.C. Handbk. 32 The BBC's..new 9.30 p.m. watershed policy, its intention to distinguish those programmes which it thinks unsuitable..for children. 1963 Television Bill in Hansard Lords 9 July 1299/2 Both the B.B.C. and the I.T.A. already claim to recognise a ‘watershed’—perhaps I can call it that—in programmes, before which they should not, in general, be unsuitable for children. 1981 B. Paulu Television & Radio in United Kingdom xvii. 310 The questions of family insecurity, marital infidelity, and sex are more difficult to resolve. Most programmes emphasizing these topics are scheduled after the Watershed hour of 9 p.m. 2013 Daily Tel. 27 Feb. 3/4 Double entendres such as ‘jugs’ and ‘melons’ are acceptable before the watershed, the BBC Trust has ruled, but references to threesomes, tantric sex and ‘slutty Sundays’ are more ‘questionable’. 2. A structure or object which is shaped (usually sloped) so that water flows to and falls from its edges. Now somewhat rare. ΘΚΠ the world > action or operation > safety > protection or defence > refuge or shelter > [noun] > shelter > a shelter > against weather or storms screen1538 tent1572 shelter1585 sconce1591 shade1624 bothy1750 breakwind1823 watershed1831 society > inhabiting and dwelling > inhabited place > a building > parts of building > wall of building > [noun] > structures for throwing off rainwater water board1372 water table1428 water tabling1520 weatherboard1568 weather-spar1632 throat1736 weathering1739 creasing1823 weather-table1839 dashboard1881 watershed1886 waterboarding1927 1831 Reg. Pennsylvania 6 Aug. 93/2 The decks shall be covered in with a perfect water-shed, like the roof of a house. 1881 R. G. White Eng. Without & Within xiv. 319 The great wheel caught my umbrella, which was twisted out of my hand in a twinkling... I picked up my wounded water-shed, and returned with it to Burlington Arcade. 1886 Trans. Royal Inst. Brit. Architects 2 79 Nothing indicates the nature of the water-shed. It may have been some description of thatch; but more probably I think of wood shingle. 1920 Railway Rev. 5 June 911/2 The galvanized metal sheets were..fitted into suitable grooves in the ridgepole and rafters, providing altogether a fairly effective watershed. 2008 S. Arnoldussen App. to Living Landscape App. i. 17 A drinking pond for animals was created, that was fed by the rainwater from the northern roof's watershed. 3. Now chiefly North American. (a) The slope down which the water flows from a water-parting; (b) the gathering ground of a river system; a catchment area or drainage basin. ΘΚΠ the world > the earth > land > land mass > shore or bank > land near river > [noun] > catchment area valleyc1790 basin1804 river basin1824 watershed1839 catchment1844 catchment basin1844 drainage1866 gathering-ground1877 drainage-basin1882 catchment area2001 the world > the earth > land > landscape > high land > slope > [noun] > water-bearing waterfall1522 watershed1839 1839 R. I. Murchison Silurian Syst. i. xxxvii. 512 To the south-west of Kington the lower beds of the Old Red Sandstone..have been the sub-aqueous water-shed, down which the coarse detritus has been swept. 1865 Hansard's Parl. Deb. 3rd Ser. 177 1333 It could easily be inferred..how very large the extent of the Thames watershed would be. 1877 T. H. Huxley Physiography 18 To avoid all ambiguity it is perhaps best to set aside the original meaning of ‘watershed’, and employ the term to denote the slope along which the water flows, while the expression ‘water-parting’ is employed for the summit of this slope. 1913 L. White Catskill Water Supply N.Y. 17 The Croton watershed would in a few years be drawn on to its full capacity. 1936 T. W. Norcross Handbk. Erosion Control Engin. iii. Such factors as density of vegetative cover, kind of soil,..slope of the watershed, and intensity of the rainfall—all have a somewhat indeterminate effect on the run-off factor. 1971 J. McPhee Encounters with Archdruid iii. 161 There are any number of excellent damsites..most notably in the immense, arid watershed of the Colorado. 1996 A. Outwater Water 64 The sluggish underground river moves down the watershed. 2003 Canad. Geographic Trav. & Adventure Winter 7/1 Trail down the mellow Continental Divide, and..let your skis kick snow into both Atlantic and Pacific watersheds. Compounds General attributive (in sense 1b), as watershed event, watershed moment, watershed year, etc. ΚΠ 1920 Congregationalist & Advance 22 Jan. 18/2 Failure on the part of either executive or Senate to realize that it is a ‘watershed moment’ in history. 1968 Lowell (Mass.) Sun 30 Apr. 4/5 If this is a true watershed period in history,..it is all the more reason why negotiations with the Communists should be regarded as a great historical event. 1987 Wilson Libr. Bull. Mar. 63/2 The arrangement allows browsers to discover the watershed events of a director's or actor's career. 2002 Imperial Oil Rev. Winter 25/1 The early 1990s were watershed years for Toronto's race relations. 2011 Daily Tel. 18 May 7/1 The Queen's watershed tour of Ireland began as planned yesterday. This entry has been updated (OED Third Edition, September 2015; most recently modified version published online December 2021). > see also also refers to : † water-shedn.² < n.¹1764 see also
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watershedn.1

Compounds

> see also

watershedn.¹