Definition of high pressure in US English:

high pressure


  • 1A condition of the atmosphere in which the pressure is above average (e.g. in an anticyclone)

    ‘the high pressure over Texas continues’
    • ‘The rotating air mass creates a high-pressure system throughout the region.’
    • ‘The scientists who discovered the collision likened it to two high-pressure weather fronts colliding to create hurricane-like conditions.’
    • ‘To make matters worse, a high-pressure system moving down from the north collided with the hurricane just as it reached inhabited territory.’
    • ‘It had been late August, the end of an uncharacteristically long period of high-pressure weather, and the sky was high and clear.’
    • ‘As a result, regions to the east of a high-pressure center often have northerly winds bringing in relatively cold air while regions to the west have southerly winds bringing in relatively warm air.’
    • ‘Southward migration is heaviest west of a cold front and east of a high-pressure center.’
    • ‘That number reflects the difference in atmospheric pressure between a long-lived low-pressure area south of Iceland and a high-pressure area off the northwestern coast of Africa.’
    • ‘For example, the interpretation of numeric weather data requires the identification of higher-level concepts, such as high-pressure systems and cold fronts.’
    • ‘Mr. Marschall states that a high-pressure system from the north caused the hurricane to stall.’
    • ‘Changing atmospheric pressure may cause some joint aches, but once a high-pressure system arrives it can lower humidity and reduce these aches.’
    • ‘The stress of yet another late paper bore down on me like the high-pressure system that brought Philadelphia the sudden change in weather.’
    • ‘Britain basked last month because of a high-pressure weather system that arrived and stayed for more than two weeks.’
    • ‘Even though it's south (and looking south I can see a build-up of dark clouds now at dusk), the high-pressure air from our north is rushing towards the storm's low-pressure system.’
    • ‘It was near the end of the day and the high-pressure altitudes were preventing the CAP aircraft from reaching the primary search area so the CAP was preparing to call off the effort.’
    • ‘It rotates counterclockwise every six days, and this direction, plus its location in the southern hemisphere, indicates that it is a high-pressure zone.’
    • ‘With the high-pressure system's withdrawal from mid-May, rainfall is to be expected.’
    • ‘In fact, the very biggest dabs are often found inshore during periods when sprat shoals are tight to shore during flat calm seas in the middle of high-pressure weather systems.’
    • ‘Following the snow that had been falling, a high-pressure front moved into the area from the Atlantic on December the 18th.’
  • 2Physical pressure that is higher than a standard or average pressure.

    ‘liquid is injected at high pressure into subterranean rocks to extract oil or gas’
  • 3A high degree of exertion, urgency, or responsibility.

    ‘he has a record of making good decisions under high pressure’


  • 1Characterized by or exhibiting atmospheric pressure that is above average.

    ‘a high-pressure system is moving down from the north’
  • 2Involving a high degree of physical pressure.

    ‘high-pressure water jets’
    • ‘We've removed a fair bit of heat from the refrigerant - it's now a high-pressure liquid at roughly ambient temperature.’
    • ‘Aerosol cans come in all shapes and sizes, housing all kinds of materials, but they all work on the same basic concept: one high-pressure fluid expands to force another fluid through a nozzle.’
    • ‘Taking a hot bath and being pummelled by high-pressure underwater jets, surrounded by large numbers of other shower-capped individuals, has rarely felt so enticing as it does here.’
    • ‘Shooters can fill the compressed air tank from either a standard scuba tank or from a high-pressure hand pump.’
    • ‘Some of the wells contain a significant amount of gas, and fire-fighters have much more difficulty controlling and capping this type of high-pressure well, the group says.’
    • ‘It can only obtain a liquid state under very high pressure in a containment vessel.’
    • ‘Her extraction method separates casein from milk with high-pressure carbon dioxide.’
    • ‘Higher pressures force solvent into the protein matrix, resulting in unfolding through a molten globule state.’
    • ‘It was difficult to access and we had to fight our way in using high-pressure hoses.’
    • ‘He had free rein to arrange the gas supply and the high-pressure converters and to select new catalysts.’
    • ‘One offender, who wished only to be known as Shane, was using a high-pressure water hose to remove graffiti that had been sprayed across the Co-op supermarket's wall.’
    • ‘All of our aqueducts and a lot of the power grid, high-pressure gas mains, you know, all that stuff crosses the San Andreas.’
    • ‘Parish councillors, including Neil Metcalfe, are worried because the site is crossed by a 42 in high pressure gas main.’
    • ‘The engines are comparable, they are all using high-pressure common rail, they are typically all using pilot injection.’
    • ‘They don't use mechanical drills but jets of high-pressure hot water, which can cut through the full 500 metre thickness of ice in 24 hours.’
    • ‘High pressure pulses move the pistons to generate strong mechanical vibration in the drill string.’
    • ‘Preliminary examination of the vessel showed the fire was caused by a leak in a high-pressure fuel line in the No. 2 engine room.’
    • ‘Three underground supply pipelines feed the depot, including a high-pressure oil pipeline from the Lindsey Oil Refinery in North Lincolnshire.’
    • ‘The cannula then was connected to a suction vacuum, and the fat was suctioned out of the area using high pressure suction.’
    • ‘When concrete has to be pumped far and fast, a high-capacity / high-pressure concrete pump should be used.’
    • ‘His alternative involved the link road moving much further away, but concerns were raised about the proximity of a high pressure gas main.’
    • ‘Sandblast cleaning is usually acceptable, as is high pressure water cleaning with approved cleaning compounds.’
    • ‘A. I'm still convinced the high-pressure solutions are the most credible for at least the first 10 years of the hydrogen economy.’
    • ‘A fully active suspension moves each wheel up and down independently, usually by way of high-pressure hydraulic rams.’
    • ‘The contents of sucrose, glucose and fructose in peel tissue were measured using high-pressure liquid chromatography.’
    • ‘The turbines shut down suddenly, forcing a high-pressure plume of steam into the air high above the island.’
    • ‘This reduces the delivery rate and energy required from the high-pressure fuel pump.’
    • ‘Then after the trays pass the visual inspection they are put through a high-pressure steam vacuum machine that sterilises the instruments.’
    • ‘Here the water is atomised using high-pressure compressed air.’
    • ‘The missile is ejected from the submarine by high-pressure gas.’
    • ‘All bathrooms include a high-pressure shower system and an electric hairdryer for the convenience of guests.’
    • ‘An enormous circular tunnel was being bored deep beneath the streets to carry high-pressure clean water.’
    • ‘Both these models had low-pressure and high-pressure, 5-cylinder, turbocharged engines, manual transmissions and automatic transmissions.’
    • ‘During initial acceleration, the high-pressure fluid is released.’
    • ‘However, the most accessible of the technologies displayed by the prototype is its high-pressure Unit Injector System (UIS) by Bosch.’
    • ‘Instead of a conventional engine intake manifold, a high-pressure injection system delivers fuel, a similar system to that used on the newest state-of-the-art diesel cars.’
    • ‘Volkswagen uses unit injectors, in which a pump is attached to each injector, resulting in higher pressures.’
    • ‘Requiring only high pressure cleaning, the roof is then coated with a special fungicidal compound.’
    • ‘Plasma levels of micronutrients were analyzed by high-pressure liquid chromatography.’
    • ‘Food will stay fresh for longer without losing its taste, thanks to high-pressure sterilisation.’
  • 3Involving a high degree of persuasion.

    ‘high-pressure sales techniques’
    • ‘High charges, stings buried in small print and the high-pressure selling of products that rarely deliver what is promised on the tin are the main complaints.’
    • ‘Boiler rooms are commonly used to describe sales offices equipped with banks of telephones that employ people who use high-pressure selling tactics.’
    • ‘Boiler room operators are very experienced in high-pressure selling techniques.’
    • ‘This means that they will continue to rip us off with high-pressure selling techniques - and even blatant mis-selling.’
    • ‘The M.E.N. sent a variety of undercover ‘customers’ into Market Street in Manchester city centre to experience the high-pressure sales tactics.’
    • ‘Today, boiler rooms refer to unregulated companies that use high-pressure selling tactics to peddle dodgy shares by providing false or misleading information.’
    • ‘Thanks to high-pressure selling, seven out of ten loans are sold with PPI, which is hugely overpriced.’
    • ‘Stories of companies that practiced high-pressure, untargeted selling at inconvenient hours ran through the newspapers.’
    • ‘Against this backdrop, Cincinnati voters distinguished themselves by keeping their cool in the face of a high-pressure campaign to sell the road.’
    • ‘It should be a friendly call, not a high-pressure sales job.’
    • ‘Once called, consumers are subjected to high-pressure selling techniques - and often part with their cash.’
    • ‘‘All you get is the high-pressure sales pitch to change carriers,’ says Frick, alluding to some telecom solicitations.’
    • ‘Boiler-room scams, which are often based in Europe, Asia and the US and involve high-pressure selling techniques, are a common type of investment scam.’
    • ‘Why do time-share sales have to be so high-pressure?’
    • ‘The church is vilified by former members and UM administrators for using high-pressure tactics to get members and keep them involved in the church.’
    • ‘There are a lot of high-pressure salespeople about.’
    • ‘I gather that a high-pressure sales pitch was used to persuade potential investors to make an instant decision to buy, and then to transfer money directly into the firms' bank accounts.’
    • ‘The high-pressure sales tactics start and it becomes very difficult to say no.’
    • ‘O'Riordan was also concerned about the high-pressure sales techniques of the company and the high cost of the product.’
    • ‘The workmen, who were initially evasive about how much they would charge, used high-pressure selling tactics after calling at the pensioner's cottage uninvited.’
    • ‘If the gyms in your area are shifting away from the high-pressure tactics of selling gym memberships, then I commend them, and I hope it is a trend that spreads to the rest of the United States.’
    • ‘On the record, he stated that the "application of high pressure is the best way to manipulate Japan."’
    • ‘Doorstep crime includes all aspects of consumer detriment and crime including bogus workmen, high-pressure sales people, bogus officials, and distraction burglary.’
    • ‘The main marketing tool it uses is high-pressure direct contact with participants, including phone calls that border on harassment, according to some participants.’
    1. 3.1 Involving a great deal of anxiety or stress.
      ‘he worked in a high-pressure advertising job’
      • ‘You know, I was under very high pressure since the demo cannot fail.’
      • ‘I will never forget the safety lessons I learned that night, or the courage the mission commander displayed in being the voice of reason in an extraordinarily high pressure situation.’
      • ‘Mr. Corzine is hardly a stranger to high-pressure situations.’
      • ‘The high-pressure sales tactics the men used in Manchester were astonishingly successful.’
      • ‘At a time when India's experienced players are reluctant to take up this high-pressure job, Kumble's sentiment is admirable.’
      • ‘Brendan Barber, the TUC General Secretary, who has been chairing talks, announced that further negotiations will be needed next week to resolve what he called a " high-pressure dispute ".’
      • ‘When emotions run hot or when circumstances are high pressure and there is ego, fear or frustrations boiling over, people often act physically if words fail them.’
      • ‘Have undergone aviation style tests to ensure they won't explode under high pressure.’
      • ‘In the criminal mode, his office assists officers in solving crimes and responds to high-pressure situations.’
      • ‘He also has a good temperament and sense of humor, which help in such a high-pressure role.’
      • ‘Human beings have a built-in response system to high-pressure situations.’
      • ‘Many teams have survived after players faltered in high-pressure payoff situations.’
      • ‘Stress is something which affects only those who have high-pressure lives.’
      • ‘He points out that it becomes very difficult for players to focus on high pressure tournament like the World Cup for too long.’
      • ‘Advances in our understanding of high-pressure behavior of biopolymers are closely linked to the design of equipment that extends existing experimental techniques to high-pressure research.’
      • ‘Sure, like youive never been in a high-visibility, high-pressure situation and wound up doing something sub-optimal.’
      • ‘Due to the high pressure of my project, it seems not feasible to do it soon.’
      • ‘Admission to a long-term-care facility from a hospital is an important marker for higher pressure ulcer risk.’
      • ‘We're a high pressure team, and are at our best when we put pressure on the ball and hunt in packs.’
      • ‘They found that people working under high pressure to meet deadlines were six times more likely to suffer a heart attack within the next 24 hours.’


high pressure

/ˈhaɪ ˈˌprɛʃər/