† pitotn.¹

Origin: Of unknown origin.

Etymology: Origin unknown. N.E.D.(1907) compares piddock n., a name applied to molluscs of the genus Pholas; compare the following reference to a French form pitaut: 1800 E. Donovan Nat. Hist. Brit. Shells II. (caption to plate LXII) Pitaut, ou Dail Pholade. Argenv. Conch. 1. p. 365. pl. 30. A similar French word is more recently attested in Canadian use for yet another species of mollusc:1971 A. M. Lysaght Joseph Banks in Newfoundland & Labrador 1766 vii. 161 These molluscs [sc. Cyrtodaria siliqua] are known by the French name of ‘pitot’ and the areas where they live are called ‘pitot banks’.

Obsolete. rare.

A kind of marine bivalve mollusc (in quot. 1611 apparently: a razor shell).

ΘΚΠ

the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [noun] > section Siphonida > sinu-pallialia > family Solenidae

razorc1311

spout1525

spout-fish1594

razor-fish1602

sheath-fish1602

hagfish1611

pitot1611

solen1661

sheath shell1712

sheatha1717

razor shell1752

knife-handle1755

sea-pencil1755

razor-shell clam1792

long clam1811

scabbard razor-shell1813

scimitar razor-shell1819

spout shell1848

scimitar1855

razor clam1860

1611 R. Cotgrave Dict. French & Eng. Tongues Manche de cousteau, the Pitot; a long, and round shell-fish.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online September 2018).

pitotn.²

Brit.

/ˈpiːtəʊ/, U.S.

/piˈtoʊ/,

/ˈpidoʊ/

Forms: also with capital initial.

Origin: From a proper name. Etymon: proper name Pitot.

Etymology: < the name of Henri Pitot (1695–1771), French scientist, who proposed the use of the Pitot tube in 1732 ( Mém. de math. et de physique de l'Acad. Royale des Sci. (1732) 363).With pitot meter n. at sense 1d compare earlier pitometer n. In pitot's tube after French tube de Pitot (1834 in the passage translated in quot. 1852 for pitot tube n. at sense 1a).

Physics and Aeronautics.

I. Compounds.

a. pitot tube n. (also †pitot's tube) an open-ended right-angled tube pointing in opposition to the flow of a fluid and connected to a means of measuring pressure; (also) a pitot-static tube.

ΘΚΠ

the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity

pitot tube1852

pitot head1910

pitot-static1920

pitot meter1934

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube

pitot tube1852

static tube1892

static pressure tube1903

pitot head1910

pressure head1913

pitot1920

pitot-static1920

1852 J. Bennett tr. J. F. d'Aubuisson de Voisins Treat. Hydraulics 158 The most simple is the Pitot's tube, so called from the name of the author who first proposed its use. It is simply a glass tube, bent at its lower end.

1881 Encycl. Brit. XII. 508/1 A Darcy gauge..consists of two Pitot tubes having their mouths at right angles.

1930 C. J. Stewart Aircraft Instruments iii. 54 The pitot-tube instrument is based on an adaptation of the method used by Pitot in 1732 for the measurement of the speed of a river.

1965 R. G. Kazmann Mod. Hydrol. iv. 63 The Pitot tube can be used to make a pattern of measurements along the cross section of a stream.

1991 Motor Boat & Yachting Jan. 156/3 It gauges the air pressure in a forward-facing open-ended pitot tube.

b. pitot head n. a pitot-static tube.

ΘΚΠ

the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity

pitot tube1852

pitot head1910

pitot-static1920

pitot meter1934

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube

pitot tube1852

static tube1892

static pressure tube1903

pitot head1910

pressure head1913

pitot1920

pitot-static1920

1910 Times 10 Aug. 13/3 The use of the Pitot type was thought undesirable..mainly because of the very small difference of pressure due to the Pitot head which is available for effecting the measurement of the velocity.

1973 ‘A. Hall’ Tango Briefing ix. 111 His inability to know to what extent our airspeed would be true and to what extent it would be expressed by the wind in the pitot-head.

1992 Pilot Nov. 51/1 We..turned on the heaters for the twin pitot heads ahead of the windscreen and checked the cockpit for red lights.

c. pitot-static adj. designating a device consisting of a pitot tube inside or next to a parallel tube, the latter being closed at the end but with holes along its length, the pressure difference between the tubes being a measure of the relative velocity of the fluid. Also as n.: the device itself.

ΘΚΠ

the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity

pitot tube1852

pitot head1910

pitot-static1920

pitot meter1934

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube

pitot tube1852

static tube1892

static pressure tube1903

pitot head1910

pressure head1913

pitot1920

pitot-static1920

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [adjective] > consisting of pitot tube and pitot-static tube

pitot-static1920

1920 L. Bairstow Appl. Aerodynamics iii. 75 (heading) Initial determination of the constant of the pitot-static pressure head.

1948 Jrnl. Royal Aeronaut. Soc. 52 272/1 Rates of climb and descent measured by the pitot-static are subject to errors introduced by random vertical currents in the atmosphere.

1992 D. M. Muir Dust & Fume Control (rev. ed.) xviii. 139 Measurement of gas flowrate is achieved usually by measuring the differential pressure head across an orifice plate, a venturi meter or a pitot-static tube.

d. pitot meter n. = pitometer n.

ΘΚΠ

the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity

pitot tube1852

pitot head1910

pitot-static1920

pitot meter1934

1934 J. H. Perry Chem. Engineers' Handbk. 692 The pitot meter consists of two tubes, one facing upstream and the other downstream.

1961 Engineering 3 Nov. 566/3 The development flowmeters..were calibrated in clean air against a venturi meter and a pitot meter.

1997 What's New in Process & Control (Nexis) Sept. 42 (headline) Pitot meter joins range.

2. General attributive. Designating devices based upon Pitot's inventions for measuring the relative velocity of air or other fluid, used esp. to determine the airspeed of an aircraft.

ΚΠ

1902 Science 13 June 947/1 It is connected by hose to one or more Pitot nozzles, and is used to measure the air velocity and pressure at all points of the stream.

1916 Field 20 May 788/2 At last he fumbles for his safety belt, but with a start remembers the Pitot Air Speed Indicator, and..smiles as he hears the Pitot-head's gruff voice, ‘Well, I should think so, twenty miles an hour I was registering.’

1991 D. Piggott Gliding Safety (BNC) 20 It is always worth while covering both the pitot and static vents to prevent rain entering the systems.

II. Simple uses.

3. A pitot tube; a pitot-static tube.

ΘΚΠ

society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube

pitot tube1852

static tube1892

static pressure tube1903

pitot head1910

pressure head1913

pitot1920

pitot-static1920

1920 G. C. Bailey Compl. Airman xxi. 172 The only really satisfactory test of the Pitot is a flying one.

1934 V. M. Yeates Winged Victory i. iii. 27 Looking at the pitot he found the speed was a hundred and twenty.

1991 D. Piggott Gliding Safety (BNC) 84 Many types have a ‘pot’ pitot in the nose and the ASI indicates a false reading during side-slip.

This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).

单词	pitot
释义	† pitotn.¹ Origin: Of unknown origin. Etymology: Origin unknown. N.E.D.(1907) compares piddock n., a name applied to molluscs of the genus Pholas; compare the following reference to a French form pitaut: 1800 E. Donovan Nat. Hist. Brit. Shells II. (caption to plate LXII) Pitaut, ou Dail Pholade. Argenv. Conch. 1. p. 365. pl. 30. A similar French word is more recently attested in Canadian use for yet another species of mollusc:1971 A. M. Lysaght Joseph Banks in Newfoundland & Labrador 1766 vii. 161 These molluscs [sc. Cyrtodaria siliqua] are known by the French name of ‘pitot’ and the areas where they live are called ‘pitot banks’. Obsolete. rare. A kind of marine bivalve mollusc (in quot. 1611 apparently: a razor shell). ΘΚΠ the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Pelecypoda or Conchifera > [noun] > section Siphonida > sinu-pallialia > family Solenidae razorc1311 spout1525 spout-fish1594 razor-fish1602 sheath-fish1602 hagfish1611 pitot1611 solen1661 sheath shell1712 sheatha1717 razor shell1752 knife-handle1755 sea-pencil1755 razor-shell clam1792 long clam1811 scabbard razor-shell1813 scimitar razor-shell1819 spout shell1848 scimitar1855 razor clam1860 1611 R. Cotgrave Dict. French & Eng. Tongues Manche de cousteau, the Pitot; a long, and round shell-fish. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online September 2018). pitotn.² Brit. /ˈpiːtəʊ/, U.S. /piˈtoʊ/, /ˈpidoʊ/ Forms: also with capital initial. Origin: From a proper name. Etymon: proper name Pitot. Etymology: < the name of Henri Pitot (1695–1771), French scientist, who proposed the use of the Pitot tube in 1732 ( Mém. de math. et de physique de l'Acad. Royale des Sci. (1732) 363).With pitot meter n. at sense 1d compare earlier pitometer n. In pitot's tube after French tube de Pitot (1834 in the passage translated in quot. 1852 for pitot tube n. at sense 1a). Physics and Aeronautics. I. Compounds. 1. a. pitot tube n. (also †pitot's tube) an open-ended right-angled tube pointing in opposition to the flow of a fluid and connected to a means of measuring pressure; (also) a pitot-static tube. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity pitot tube1852 pitot head1910 pitot-static1920 pitot meter1934 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube pitot tube1852 static tube1892 static pressure tube1903 pitot head1910 pressure head1913 pitot1920 pitot-static1920 1852 J. Bennett tr. J. F. d'Aubuisson de Voisins Treat. Hydraulics 158 The most simple is the Pitot's tube, so called from the name of the author who first proposed its use. It is simply a glass tube, bent at its lower end. 1881 Encycl. Brit. XII. 508/1 A Darcy gauge..consists of two Pitot tubes having their mouths at right angles. 1930 C. J. Stewart Aircraft Instruments iii. 54 The pitot-tube instrument is based on an adaptation of the method used by Pitot in 1732 for the measurement of the speed of a river. 1965 R. G. Kazmann Mod. Hydrol. iv. 63 The Pitot tube can be used to make a pattern of measurements along the cross section of a stream. 1991 Motor Boat & Yachting Jan. 156/3 It gauges the air pressure in a forward-facing open-ended pitot tube. b. pitot head n. a pitot-static tube. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity pitot tube1852 pitot head1910 pitot-static1920 pitot meter1934 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube pitot tube1852 static tube1892 static pressure tube1903 pitot head1910 pressure head1913 pitot1920 pitot-static1920 1910 Times 10 Aug. 13/3 The use of the Pitot type was thought undesirable..mainly because of the very small difference of pressure due to the Pitot head which is available for effecting the measurement of the velocity. 1973 ‘A. Hall’ Tango Briefing ix. 111 His inability to know to what extent our airspeed would be true and to what extent it would be expressed by the wind in the pitot-head. 1992 Pilot Nov. 51/1 We..turned on the heaters for the twin pitot heads ahead of the windscreen and checked the cockpit for red lights. c. pitot-static adj. designating a device consisting of a pitot tube inside or next to a parallel tube, the latter being closed at the end but with holes along its length, the pressure difference between the tubes being a measure of the relative velocity of the fluid. Also as n.: the device itself. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity pitot tube1852 pitot head1910 pitot-static1920 pitot meter1934 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube pitot tube1852 static tube1892 static pressure tube1903 pitot head1910 pressure head1913 pitot1920 pitot-static1920 society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [adjective] > consisting of pitot tube and pitot-static tube pitot-static1920 1920 L. Bairstow Appl. Aerodynamics iii. 75 (heading) Initial determination of the constant of the pitot-static pressure head. 1948 Jrnl. Royal Aeronaut. Soc. 52 272/1 Rates of climb and descent measured by the pitot-static are subject to errors introduced by random vertical currents in the atmosphere. 1992 D. M. Muir Dust & Fume Control (rev. ed.) xviii. 139 Measurement of gas flowrate is achieved usually by measuring the differential pressure head across an orifice plate, a venturi meter or a pitot-static tube. d. pitot meter n. = pitometer n. ΘΚΠ the world > matter > physics > mechanics > dynamics > fluid dynamics > [noun] > devices for measuring fluid velocity pitot tube1852 pitot head1910 pitot-static1920 pitot meter1934 1934 J. H. Perry Chem. Engineers' Handbk. 692 The pitot meter consists of two tubes, one facing upstream and the other downstream. 1961 Engineering 3 Nov. 566/3 The development flowmeters..were calibrated in clean air against a venturi meter and a pitot meter. 1997 What's New in Process & Control (Nexis) Sept. 42 (headline) Pitot meter joins range. 2. General attributive. Designating devices based upon Pitot's inventions for measuring the relative velocity of air or other fluid, used esp. to determine the airspeed of an aircraft. ΚΠ 1902 Science 13 June 947/1 It is connected by hose to one or more Pitot nozzles, and is used to measure the air velocity and pressure at all points of the stream. 1916 Field 20 May 788/2 At last he fumbles for his safety belt, but with a start remembers the Pitot Air Speed Indicator, and..smiles as he hears the Pitot-head's gruff voice, ‘Well, I should think so, twenty miles an hour I was registering.’ 1991 D. Piggott Gliding Safety (BNC) 20 It is always worth while covering both the pitot and static vents to prevent rain entering the systems. II. Simple uses. 3. A pitot tube; a pitot-static tube. ΘΚΠ society > travel > air or space travel > a means of conveyance through the air > aeroplane > parts of aircraft > controls and instruments > [noun] > pitot tube or pitot-static tube pitot tube1852 static tube1892 static pressure tube1903 pitot head1910 pressure head1913 pitot1920 pitot-static1920 1920 G. C. Bailey Compl. Airman xxi. 172 The only really satisfactory test of the Pitot is a flying one. 1934 V. M. Yeates Winged Victory i. iii. 27 Looking at the pitot he found the speed was a hundred and twenty. 1991 D. Piggott Gliding Safety (BNC) 84 Many types have a ‘pot’ pitot in the nose and the ASI indicates a false reading during side-slip. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.¹1611n.²1852
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† pitotn.1

pitotn.2

† pitotn.¹

pitotn.²