powerheadn.

Brit.

/ˈpaʊəhɛd/, U.S.

/ˈpaʊ(ə)rˌ(h)ɛd/

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

Etymology: < power n.¹ + head n.¹

a. The source of power (as a generator, motor, etc.) for a piece of machinery or industrial plant.

ΚΠ

1905 Arizona Republican 29 Mar. (advert) For Sale—one Ames double action deep well pump complete with Fulton power head.

1943 Times 21 Aug. 10/6 (advt.) Henry Butcher and Co., are instructed to offer for sale..Well Drilling and Contractors' Plant and Equipment, including ‘Climax’ Figure 51 Power Heads.

2002 Mother Earth News (Nexis) Dec. 37 Most chainsaw mills require heavy-duty power heads. Your current chainsaw may not be powerful enough to run it.

b. The part of a vehicle engine or outboard motor consisting principally of the cylinder block, pistons, connecting rods, and crankshaft.

ΚΠ

1929 Landmark (Statesville, N. Carolina) 23 Sept. 11/4 (advt.) High Compression Power Heads for Model-T–TT Ford and Fordson—$11.75.

1955 Herald-Press (St. Joseph, Mich.) 11 Jan. 11/5 The newly developed acousti-cowl..further silences the powerheads on the Mark 55, Mark 25 and Mark 6 models.

1975 Aviation Week (Nexis) 30 June 37 (caption) Powerhead component arrangement for the space shuttle main engine includes the hydrogen and oxygen preburner and high-pressure turbopumps that channel propellants to the main injector for final combustion.

1994 Harrowsmith June 12 (advt.) The new Mercs from 75 to 125 hp have sleek new cowls that absorb more sound while keeping their powerheads dry.

1999 BBC Top Gear Mag. Aug. 263/4 The engine remains as snoozesome as the rest of the car until you're hitting hard into the powerhead.

c. (An attachment forming) the operative part of an appliance (esp. a vacuum cleaner or shower) which either has its own power source or is particularly powerful.

ΘΚΠ

society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > other specific parts

armOE

button?1561

running gear1663

relax1676

collar1678

drumhead1698

long arm1717

drum1744

press cloth1745

head1785

absorber1789

bearing plate1794

crown1796

rhodings1805

press box1825

alternator1829

cushion1832

saw tooth1835

shoe1837

keyboard1839

returner1839

cross-head1844

channel shoe1845

baster1846

water port1864

shifter1869

magazine1873

entry port1874

upsetter1875

mechanism1876

tapper1876

tension bar1879

buttonholer1882

take-up1884

auger1886

instrument panel1897

balancer1904

torsion bar1937

powerhead1960

1960 Mountain Democrat (Placerville, Calif.) 6 Oct. ii. 1/1 (advt.) Hoover Constellation with power head $59.95.

1971 Van Wert (Ohio) Times Bull. 23 Nov. (Suppl.) 3 (advt.) Cordless electric shoe polisher kit. Contains power head, brush, buffer, hand dauber, polish.

1986 HFD (Nexis) 21 July 63 The power team [vacuum cleaner] has a motorized agitator in the powerhead.

1995 Herald (Glasgow) (Nexis) 18 Mar. 25 Those power heads of the jet-set hotel bathrooms which hurl scalding fluid at all the wrong places.

d. In fishkeeping: a small submersible aquarium pump.

ΘΚΠ

society > occupation and work > equipment > pump > [noun] > other types of pump

bottom lift1778

rose pump1778

centrifugal pump1789

jack-heada1792

jet pump1850

sand-pump1865

Union pump1867

shell-pump1875

eductor1877

brake-pump1881

bull-pump1881

cam-pumpa1884

sand-reel1883

grasshopper1884

knapsack pump1894

knapsack sprayer1897

turbo-pump1903

Sylphon1906

slush pump1913

displacement pump1924

power pack1937

proportioner1945

solids pump1957

peristaltic pump1958

powerhead1981

Cornish pump-

1981 Freshwater & Marine Aquarium Feb. 3 (advt.) AquaClear Power Head... Converts undergravel filters... Waterproof epoxy filled motor... No moving parts.

1986 D. Mills You & Your Aquarium iv. 128/2 (caption) The water flow rate through the filter can be improved by fitting a power head to the airlift tube.

2004 Chicago Tribune (Nexis) 22 Feb. ns8 You'll need a submerged water pump or powerheads to simulate..cleansing waves.

2. A source or origin of power or authority; a person embodying or representing this.

ΘΚΠ

society > authority > power > [noun] > source of power

power base1929

powerhead1933

1933 C. Sherrington Brain & its Mechanism 33 There is no transmission from a, so to say, mental power-head, but a subtle spread of action.

1980 G. G. Scott Cult & Countercult iii. xiii. 109 The Breath of Danau Coven..is rigidly hierarchical and authoritarian, and the high priest is unofficially the real power head.

1986 Advertiser (Adelaide) (Nexis) 3 June It seems so mightily fraught with implications of involvement and vested interests at some mysterious powerhead.

2000 Out Dec. 32/1 Despite kick-ass demo tapes played for record-industry powerheads..the star-maker machinery behind the popular song just couldn't be budged.

This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022).

单词	powerhead
释义	powerheadn. Brit. /ˈpaʊəhɛd/, U.S. /ˈpaʊ(ə)rˌ(h)ɛd/ Origin: Formed within English, by compounding. Etymons: power n.¹, head n.¹ Etymology: < power n.¹ + head n.¹ 1. a. The source of power (as a generator, motor, etc.) for a piece of machinery or industrial plant. ΚΠ 1905 Arizona Republican 29 Mar. (advert) For Sale—one Ames double action deep well pump complete with Fulton power head. 1943 Times 21 Aug. 10/6 (advt.) Henry Butcher and Co., are instructed to offer for sale..Well Drilling and Contractors' Plant and Equipment, including ‘Climax’ Figure 51 Power Heads. 2002 Mother Earth News (Nexis) Dec. 37 Most chainsaw mills require heavy-duty power heads. Your current chainsaw may not be powerful enough to run it. b. The part of a vehicle engine or outboard motor consisting principally of the cylinder block, pistons, connecting rods, and crankshaft. ΚΠ 1929 Landmark (Statesville, N. Carolina) 23 Sept. 11/4 (advt.) High Compression Power Heads for Model-T–TT Ford and Fordson—$11.75. 1955 Herald-Press (St. Joseph, Mich.) 11 Jan. 11/5 The newly developed acousti-cowl..further silences the powerheads on the Mark 55, Mark 25 and Mark 6 models. 1975 Aviation Week (Nexis) 30 June 37 (caption) Powerhead component arrangement for the space shuttle main engine includes the hydrogen and oxygen preburner and high-pressure turbopumps that channel propellants to the main injector for final combustion. 1994 Harrowsmith June 12 (advt.) The new Mercs from 75 to 125 hp have sleek new cowls that absorb more sound while keeping their powerheads dry. 1999 BBC Top Gear Mag. Aug. 263/4 The engine remains as snoozesome as the rest of the car until you're hitting hard into the powerhead. c. (An attachment forming) the operative part of an appliance (esp. a vacuum cleaner or shower) which either has its own power source or is particularly powerful. ΘΚΠ society > occupation and work > equipment > machine > parts of machines > other parts > [noun] > other specific parts armOE button?1561 running gear1663 relax1676 collar1678 drumhead1698 long arm1717 drum1744 press cloth1745 head1785 absorber1789 bearing plate1794 crown1796 rhodings1805 press box1825 alternator1829 cushion1832 saw tooth1835 shoe1837 keyboard1839 returner1839 cross-head1844 channel shoe1845 baster1846 water port1864 shifter1869 magazine1873 entry port1874 upsetter1875 mechanism1876 tapper1876 tension bar1879 buttonholer1882 take-up1884 auger1886 instrument panel1897 balancer1904 torsion bar1937 powerhead1960 1960 Mountain Democrat (Placerville, Calif.) 6 Oct. ii. 1/1 (advt.) Hoover Constellation with power head $59.95. 1971 Van Wert (Ohio) Times Bull. 23 Nov. (Suppl.) 3 (advt.) Cordless electric shoe polisher kit. Contains power head, brush, buffer, hand dauber, polish. 1986 HFD (Nexis) 21 July 63 The power team [vacuum cleaner] has a motorized agitator in the powerhead. 1995 Herald (Glasgow) (Nexis) 18 Mar. 25 Those power heads of the jet-set hotel bathrooms which hurl scalding fluid at all the wrong places. d. In fishkeeping: a small submersible aquarium pump. ΘΚΠ society > occupation and work > equipment > pump > [noun] > other types of pump bottom lift1778 rose pump1778 centrifugal pump1789 jack-heada1792 jet pump1850 sand-pump1865 Union pump1867 shell-pump1875 eductor1877 brake-pump1881 bull-pump1881 cam-pumpa1884 sand-reel1883 grasshopper1884 knapsack pump1894 knapsack sprayer1897 turbo-pump1903 Sylphon1906 slush pump1913 displacement pump1924 power pack1937 proportioner1945 solids pump1957 peristaltic pump1958 powerhead1981 Cornish pump- 1981 Freshwater & Marine Aquarium Feb. 3 (advt.) AquaClear Power Head... Converts undergravel filters... Waterproof epoxy filled motor... No moving parts. 1986 D. Mills You & Your Aquarium iv. 128/2 (caption) The water flow rate through the filter can be improved by fitting a power head to the airlift tube. 2004 Chicago Tribune (Nexis) 22 Feb. ns8 You'll need a submerged water pump or powerheads to simulate..cleansing waves. 2. A source or origin of power or authority; a person embodying or representing this. ΘΚΠ society > authority > power > [noun] > source of power power base1929 powerhead1933 1933 C. Sherrington Brain & its Mechanism 33 There is no transmission from a, so to say, mental power-head, but a subtle spread of action. 1980 G. G. Scott Cult & Countercult iii. xiii. 109 The Breath of Danau Coven..is rigidly hierarchical and authoritarian, and the high priest is unofficially the real power head. 1986 Advertiser (Adelaide) (Nexis) 3 June It seems so mightily fraught with implications of involvement and vested interests at some mysterious powerhead. 2000 Out Dec. 32/1 Despite kick-ass demo tapes played for record-industry powerheads..the star-maker machinery behind the popular song just couldn't be budged. This is a new entry (OED Third Edition, December 2006; most recently modified version published online March 2022). < n.1905
随便看	performatively performativeness performatives performativity performatorily performatory performed performent performer performers performing performing artist performing arts performing pitch performing rights performing score performings performs perfossion perfract perfretation perfricate perfrication perfrict perfriction