pressure : Idioms & Phrases


acoustic radiation pressure

  • noun (acoustics) the pressure exerted on a surface normal to the direction of propagation of a sound wave
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air pressure

  • noun the pressure exerted by the atmosphere
    pressure; air pressure.
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arterial pressure

  • noun the pressure of the circulating blood on the arteries
    • arterial pressure is the product of cardiac output and vascular resistance
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Atmospheric pressure

  • noun the pressure exerted by the atmosphere
    pressure; air pressure.
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  • the pressure exerted by the atmosphere, not merely downwards, but in every direction. In amounts to about 14.7 Ibs. on each square inch.
Webster 1913

Atmospheric pressure, Center of pressure, etc.

  • See under Atmospheric, Center, etc.
Webster 1913

Back pressure

  • (Steam engine), pressure which resists the motion of the piston, as the pressure of exhaust steam which does not find free outlet.
Webster 1913

barometric pressure

  • noun atmospheric pressure as indicated by a barometer
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blood pressure

  • noun the pressure of the circulating blood against the walls of the blood vessels; results from the systole of the left ventricle of the heart; sometimes measured for a quick evaluation of a person's health
    • adult blood pressure is considered normal at 120/80 where the first number is the systolic pressure and the second is the diastolic pressure
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Center of pressure

  • (Hydros.), that point in a surface pressed by a fluid, at which, if a force equal to the whole pressure and in the same line be applied in a contrary direction, it will balance or counteract the whole pressure of the fluid.
Webster 1913

compartment pressure

  • noun the air pressure maintained in an air-tight compartment (as in an aircraft)
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corpuscular-radiation pressure

  • noun the minute pressure exerted on a surface normal to the direction of propagation of a wave
    corpuscular-radiation pressure.
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Counter pressure

  • force or pressure that acts in a contrary direction to some other opposing pressure.
Webster 1913

dalton's law of partial pressures

  • noun (chemistry and physics) law stating that the pressure exerted by a mixture of gases equals the sum of the partial pressures of the gases in the mixture; the pressure of a gas in a mixture equals the pressure it would exert if it occupied the same volume alone at the same temperature
    Dalton's law; Dalton's law of partial pressures.
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diastolic pressure

  • noun the blood pressure (as measured by a sphygmomanometer) after the contraction of the heart while the chambers of the heart refill with blood
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Fluid pressure

  • pressure like that exerted by a fluid. It is a thrust which is normal and equally intense in all directions around a point. Rankine.
Webster 1913

gas pressure

  • noun the pressure exerted by a gas
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high blood pressure

  • noun a common disorder in which blood pressure remains abnormally high (a reading of 140/90 mm Hg or greater)
    hypertension.
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High steam, ∨ High-pressure steam

  • steam of which the pressure greatly exceeds that of the atmosphere.
Webster 1913

high-pressure

  • adjective satellite aggressively and persistently persuasive
    hard-hitting.
    • a hard-hitting advertising campaign
    • a high-pressure salesman
WordNet
High"-pres`sure adjective
Definitions
  1. Having or involving a pressure greatly exceeding that of the atmosphere; -- said of steam, air, water, etc., and of steam, air, or hydraulic engines, water wheels, etc.
  2. Fig.: Urgent; intense; as, a high-pressure business or social life.
Webster 1913

High-pressure engine

  • an engine in which steam at high pressure is used. It may be either a condensing or a noncondensing engine. Formerly the term was used only of the latter. See Steam engine.
Webster 1913

Inches of pressure

  • usually, the pressure indicated by so many inches of a mercury column, as on a steam gauge.
Webster 1913

instantaneous sound pressure

  • noun the difference between the instantaneous pressure at a point in a sound field and the average pressure at that point
    instantaneous sound pressure.
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intraocular pressure

  • noun pressure exerted by the fluids inside the eyeball; regulated by resistance to the outward flow of aqueous humor
    IOP.
    • glaucoma can result from increased intraocular pressure
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Lateral pressure or stress

  • (Mech.), a pressure or stress at right angles to the length, as of a beam or bridge; distinguished from longitudinal pressure or stress.
Webster 1913

law of partial pressures

  • noun (chemistry and physics) law stating that the pressure exerted by a mixture of gases equals the sum of the partial pressures of the gases in the mixture; the pressure of a gas in a mixture equals the pressure it would exert if it occupied the same volume alone at the same temperature
    Dalton's law; Dalton's law of partial pressures.
WordNet

Low steam, ∨ Low-pressure steam

  • steam of which the pressure is less than, equal to, or not greatly above, that of the atmosphere.
Webster 1913

low-pressure

  • adjective satellite not forceful
    • a low-pressure salesman
    • a low-pressure campaign
WordNet
Low"-pres`sure adjective
Definitions
  1. Having, employing, or exerting, a low degree of pressure.
Webster 1913

Low-pressure steam engine

  • a steam engine in which low steam is used; often applied to a condensing engine even when steam at high pressure is used. See Steam engine.
Webster 1913

oil pressure

  • noun pressure that keeps oil on the moving parts of an internal-combustion engine
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osmotic pressure

  • noun (physical chemistry) the pressure exerted by a solution necessary to prevent osmosis into that solution when it is separated from the pure solvent by a semipermeable membrane
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pascal's law of fluid pressures

  • noun pressure applied anywhere to a body of fluid causes a force to be transmitted equally in all directions; the force acts at right angles to any surface in contact with the fluid
    Pascal's law.
    • the hydraulic press is an application of Pascal's law
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pressure cabin

  • noun cabin consisting of the pressurized section of an aircraft or spacecraft
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pressure cooker

  • noun autoclave for cooking at temperatures above the boiling point of water
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pressure dome

  • noun a dome-shaped building that is pressurized
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pressure feed

  • noun mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings
    force-feed lubricating system; lubricating system; force feed; pressure feed.
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pressure gage

  • noun gauge for measuring and indicating fluid pressure
    pressure gage.
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Pressure gauge

  • noun gauge for measuring and indicating fluid pressure
    pressure gage.
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  • a gauge for indicating fluid pressure; a manometer.
Webster 1913

pressure group

  • noun a group of people who try actively to influence legislation
    lobby; third house.
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pressure level

  • noun the force applied to a unit area of surface; measured in pascals (SI unit) or in dynes (cgs unit)
    pressure; force per unit area.
    • the compressed gas exerts an increased pressure
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pressure point

  • noun any of several points on the body where the pulse can be felt and where pressure on an underlying artery will control bleeding from that artery at a more distal point
  • noun where problems or difficulties are likely to occur
    • a key pressure point in the controversy was the building permit
  • noun an area on the skin that is highly sensitive to pressure
    • you must know the pressure points in order to administer shiatsu
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pressure sensation

  • noun the somatic sensation that results from applying force to an area of skin
    pressure.
    • the sensitivity of his skin to pressure and temperature was normal
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pressure sore

  • noun a chronic ulcer of the skin caused by prolonged pressure on it (as in bedridden patients)
    bedsore; decubitus ulcer.
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pressure suit

  • noun protective garment consisting of an inflatable suit for space or high altitude flying
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pressure unit

  • noun a unit measuring force per unit area
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pressure-cook

  • verb cook in a pressure cooker
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pressure-feed lubricating system

  • noun mechanical system of lubricating internal combustion engines in which a pump forces oil into the engine bearings
    force-feed lubricating system; lubricating system; force feed; pressure feed.
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pressure-wash

  • verb wash before painting to remove old paint and mildew
    powerwash.
    • pressure-wash the house
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radiation pressure

  • noun the minute pressure exerted on a surface normal to the direction of propagation of a wave
    corpuscular-radiation pressure.
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sea-level pressure

  • noun the atmospheric pressure reduced by a formula to the pressure at sea level
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sound pressure

  • noun the difference between the instantaneous pressure at a point in a sound field and the average pressure at that point
    instantaneous sound pressure.
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sound pressure level

  • noun the physical intensity of sound
    acoustic power.
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standard pressure

  • noun a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigrade
    atmosphere; atm; standard atmosphere.
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systolic pressure

  • noun the blood pressure (as measured by a sphygmomanometer) during the contraction of the left ventricle of the heart
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turn up the pressure

  • verb apply great or increased pressure
    turn up the heat.
    • The Democrats turned up the heat on their candidate to concede the election
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vapor pressure

  • noun the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form)
    vapor pressure.
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vapour pressure

  • noun the pressure exerted by a vapor; often understood to mean saturated vapor pressure (the vapor pressure of a vapor in contact with its liquid form)
    vapor pressure.
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venous pressure

  • noun the pressure exerted on the walls of the veins by the circulating blood
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