water headn.

Brit.

/ˈwɔːtə ˌhɛd/, U.S.

/ˈwɔdər ˌhɛd/,

/ˈwɑdər ˌhɛd/

Forms: see water n. and head n.¹

Origin: Formed within English, by compounding. Etymons: water n., head n.¹

Etymology: < water n. + head n.¹

1. Now chiefly in as one word. The source of a river or stream; (also) the land around such a source. Cf. head n.¹ 38a.

ΘΚΠ

the world > the earth > water > rivers and streams > system > [noun] > head or source

headeOE

wellspringOE

springOE

uptaking1241

head wella1325

wellheadc1330

sourcec1386

headspringa1398

headstreama1398

risinga1398

surge1523

springhead?a1560

head fountain1563

water head1567

fountainhead1585

headwater1612

fill1622

water source1651

urn1726

vomica1838

sponge-swamp1901

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

water head1567

1567 in 6th Rep. Royal Comm. Hist. MSS: Pt. I (1877) 642/2 in Parl. Papers (C. 1745) XLVII. 1 Ane new gift..off all and haill the four merk land and the half of the watter-heid.

a1655 S. Simpson Treat. of Faith iii. 17 in Two Bks. (1658) The fountain and water head must be kept continually cleer.

1777 Daily Advertiser 13 Nov. There is a Brook running through a considerable Part of the Premises.., and a Water Head and Fall.

1843 Penny Cycl. XXVII. 676/2 A great nucleus of water-heads lying within a circle of ten or twelve miles diameter, in which we find some of the sources of the Swale, Eden, the eastern affluents of the Lune, [etc.].

1900 Daily News 26 Jan. 3/1 We descended the hill, and, passing by the waterhead his father so loved in the old days of his carriage tours, we drove to the church.

1920 Amer. Sheep Breeder May 322/3 Lands along the waterheads of the Appalachian rivers.

2003 A. Andreyev Soviet Russia & Tibet i. 18 This new generation of Russian explorers trekked across the arduous expanse of northern Tibet..as far as the waterheads of the great Chinese rivers.

a. A head of pressure resulting from a column of water; a source of water pressure in a boiler or other structure. Cf. head of water at head n.¹ 44b.

ΘΚΠ

the world > the earth > water > lake > pool > [noun] > store of water

water head1850

static water1885

1850 Sci. Amer. 23 Mar. 211/2 Let us imagine that a boat having boilers so constructed..has just landed, and..that the water head sunk below the fire line, a portion of the boiler left naked.

1898 Pelton Water Wheel (Pelton Water Wheel Co.) (ed. 7) 53 Numerous localities may be referred to..where higher water heads are available.

1914 London Q. Rev. Oct. 227 Only about one-fifteenth of the total length of the dam, or 500 feet, will be exposed to the maximum water-head of 85 feet.

1999 B. C. Gerwick Constr. Marine & Offshore Structures xii. 427 Skirts have been provided around the drilling shafts and water heads have been kept balanced during this operation.

2008 Arctic, Antarctic, & Alpine Res. 40 414/1 A water head of 4 cm was maintained within rings during infiltration trials.

b. In a steam boiler: a part from or through which water passes in a number of separate streams or tubes. Also: a water sprinkler or rose. Cf. head n.¹ 16c.

ΘΚΠ

the world > matter > liquid > liquid flow > action or process of sprinkling > [noun] > sprinkler

sprinklea1382

sprinkler1535

springer1601

sprinker1648

aspergilluma1657

sperge1676

rose1706

rose head1742

whisk1745

asperge1848

rose nozzle1848

rose sprinkler1856

water head1856

sparger1858

sprinkler installation1887

society > occupation and work > equipment > machine > machines which impart power > boiler > [noun] > parts of > tubes or pipes

water tube1720

tube1833

water head1856

worm1857

cross-tubea1884

furnace-tube1888

feed collector1902

1856 F. L. Olmsted Journey Slave States 7 The celery trenches are arranged in concentric circles, the water-head being in the center.

1899 G. D. Hiscox Mech. Movements, Powers, Devices & Appliances iv. 62 The inclined tubes are in three groups, set in three steam drums above and three water-heads below.

1922 Boiler Maker Feb. 60/2 A boiler including..lower water heads communicating with the tubes.

2007 A. Williams Spa Bodywork iii. 52/1 Usually the shower stall has pipes in all four corners with 8 to 16 water heads coming off each pipe.

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

单词	water head
释义	water headn. Brit. /ˈwɔːtə ˌhɛd/, U.S. /ˈwɔdər ˌhɛd/, /ˈwɑdər ˌhɛd/ Forms: see water n. and head n.¹ Origin: Formed within English, by compounding. Etymons: water n., head n.¹ Etymology: < water n. + head n.¹ 1. Now chiefly in as one word. The source of a river or stream; (also) the land around such a source. Cf. head n.¹ 38a. ΘΚΠ the world > the earth > water > rivers and streams > system > [noun] > head or source headeOE wellspringOE springOE uptaking1241 head wella1325 wellheadc1330 sourcec1386 headspringa1398 headstreama1398 risinga1398 surge1523 springhead?a1560 head fountain1563 water head1567 fountainhead1585 headwater1612 fill1622 water source1651 urn1726 vomica1838 sponge-swamp1901 the world > the earth > land > land mass > shore or bank > land near river > [noun] > near source water head1567 1567 in 6th Rep. Royal Comm. Hist. MSS: Pt. I (1877) 642/2 in Parl. Papers (C. 1745) XLVII. 1 Ane new gift..off all and haill the four merk land and the half of the watter-heid. a1655 S. Simpson Treat. of Faith iii. 17 in Two Bks. (1658) The fountain and water head must be kept continually cleer. 1777 Daily Advertiser 13 Nov. There is a Brook running through a considerable Part of the Premises.., and a Water Head and Fall. 1843 Penny Cycl. XXVII. 676/2 A great nucleus of water-heads lying within a circle of ten or twelve miles diameter, in which we find some of the sources of the Swale, Eden, the eastern affluents of the Lune, [etc.]. 1900 Daily News 26 Jan. 3/1 We descended the hill, and, passing by the waterhead his father so loved in the old days of his carriage tours, we drove to the church. 1920 Amer. Sheep Breeder May 322/3 Lands along the waterheads of the Appalachian rivers. 2003 A. Andreyev Soviet Russia & Tibet i. 18 This new generation of Russian explorers trekked across the arduous expanse of northern Tibet..as far as the waterheads of the great Chinese rivers. 2. a. A head of pressure resulting from a column of water; a source of water pressure in a boiler or other structure. Cf. head of water at head n.¹ 44b. ΘΚΠ the world > the earth > water > lake > pool > [noun] > store of water water head1850 static water1885 1850 Sci. Amer. 23 Mar. 211/2 Let us imagine that a boat having boilers so constructed..has just landed, and..that the water head sunk below the fire line, a portion of the boiler left naked. 1898 Pelton Water Wheel (Pelton Water Wheel Co.) (ed. 7) 53 Numerous localities may be referred to..where higher water heads are available. 1914 London Q. Rev. Oct. 227 Only about one-fifteenth of the total length of the dam, or 500 feet, will be exposed to the maximum water-head of 85 feet. 1999 B. C. Gerwick Constr. Marine & Offshore Structures xii. 427 Skirts have been provided around the drilling shafts and water heads have been kept balanced during this operation. 2008 Arctic, Antarctic, & Alpine Res. 40 414/1 A water head of 4 cm was maintained within rings during infiltration trials. b. In a steam boiler: a part from or through which water passes in a number of separate streams or tubes. Also: a water sprinkler or rose. Cf. head n.¹ 16c. ΘΚΠ the world > matter > liquid > liquid flow > action or process of sprinkling > [noun] > sprinkler sprinklea1382 sprinkler1535 springer1601 sprinker1648 aspergilluma1657 sperge1676 rose1706 rose head1742 whisk1745 asperge1848 rose nozzle1848 rose sprinkler1856 water head1856 sparger1858 sprinkler installation1887 society > occupation and work > equipment > machine > machines which impart power > boiler > [noun] > parts of > tubes or pipes water tube1720 tube1833 water head1856 worm1857 cross-tubea1884 furnace-tube1888 feed collector1902 1856 F. L. Olmsted Journey Slave States 7 The celery trenches are arranged in concentric circles, the water-head being in the center. 1899 G. D. Hiscox Mech. Movements, Powers, Devices & Appliances iv. 62 The inclined tubes are in three groups, set in three steam drums above and three water-heads below. 1922 Boiler Maker Feb. 60/2 A boiler including..lower water heads communicating with the tubes. 2007 A. Williams Spa Bodywork iii. 52/1 Usually the shower stall has pipes in all four corners with 8 to 16 water heads coming off each pipe. This entry has been updated (OED Third Edition, September 2015; most recently modified version published online December 2021). < n.1567
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