Definition of high pressure in English:

high pressure


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

    ‘an area of high pressure over much of the UK means that dry and fine conditions look set to continue’
    as modifier ‘a high-pressure system moving down from the north’
    • ‘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.’
    • ‘It rotates counterclockwise every six days, and this direction, plus its location in the southern hemisphere, indicates that it is a high-pressure zone.’
    • ‘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.’
    • ‘For example, the interpretation of numeric weather data requires the identification of higher-level concepts, such as high-pressure systems and cold fronts.’
    • ‘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.’
    • ‘Changing atmospheric pressure may cause some joint aches, but once a high-pressure system arrives it can lower humidity and reduce these aches.’
    • ‘The scientists who discovered the collision likened it to two high-pressure weather fronts colliding to create hurricane-like conditions.’
    • ‘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.’
    • ‘It had been late August, the end of an uncharacteristically long period of high-pressure weather, and the sky was high and clear.’
    • ‘With the high-pressure system's withdrawal from mid-May, rainfall is to be expected.’
    • ‘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.’
    • ‘To make matters worse, a high-pressure system moving down from the north collided with the hurricane just as it reached inhabited territory.’
    • ‘Mr. Marschall states that a high-pressure system from the north caused the hurricane to stall.’
    • ‘Following the snow that had been falling, a high-pressure front moved into the area from the Atlantic on December the 18th.’
    • ‘The rotating air mass creates a high-pressure system throughout the region.’
    • ‘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.’


  • 1Using or containing a gas or liquid subject to great pressure.

    ‘high-pressure water jets’
    • ‘Her extraction method separates casein from milk with high-pressure carbon dioxide.’
    • ‘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.’
    • ‘Both these models had low-pressure and high-pressure, 5-cylinder, turbocharged engines, manual transmissions and automatic transmissions.’
    • ‘A fully active suspension moves each wheel up and down independently, usually by way of high-pressure hydraulic rams.’
    • ‘Requiring only high pressure cleaning, the roof is then coated with a special fungicidal compound.’
    • ‘All of our aqueducts and a lot of the power grid, high-pressure gas mains, you know, all that stuff crosses the San Andreas.’
    • ‘All bathrooms include a high-pressure shower system and an electric hairdryer for the convenience of guests.’
    • ‘However, the most accessible of the technologies displayed by the prototype is its high-pressure Unit Injector System (UIS) by Bosch.’
    • ‘Shooters can fill the compressed air tank from either a standard scuba tank or from a high-pressure hand pump.’
    • ‘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.’
    • ‘Food will stay fresh for longer without losing its taste, thanks to high-pressure sterilisation.’
    • ‘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.’
    • ‘Sandblast cleaning is usually acceptable, as is high pressure water cleaning with approved cleaning compounds.’
    • ‘Then after the trays pass the visual inspection they are put through a high-pressure steam vacuum machine that sterilises the instruments.’
    • ‘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.’
    • ‘The cannula then was connected to a suction vacuum, and the fat was suctioned out of the area using high pressure suction.’
    • ‘Three underground supply pipelines feed the depot, including a high-pressure oil pipeline from the Lindsey Oil Refinery in North Lincolnshire.’
    • ‘Volkswagen uses unit injectors, in which a pump is attached to each injector, resulting in higher pressures.’
    • ‘This reduces the delivery rate and energy required from the high-pressure fuel pump.’
    • ‘He had free rein to arrange the gas supply and the high-pressure converters and to select new catalysts.’
    • ‘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.’
    • ‘The turbines shut down suddenly, forcing a high-pressure plume of steam into the air high above the island.’
    • ‘High pressure pulses move the pistons to generate strong mechanical vibration in the drill string.’
    • ‘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.’
    • ‘The engines are comparable, they are all using high-pressure common rail, they are typically all using pilot injection.’
    • ‘It was difficult to access and we had to fight our way in using high-pressure hoses.’
    • ‘His alternative involved the link road moving much further away, but concerns were raised about the proximity of a high pressure gas main.’
    • ‘An enormous circular tunnel was being bored deep beneath the streets to carry high-pressure clean water.’
    • ‘It can only obtain a liquid state under very high pressure in a containment vessel.’
    • ‘The contents of sucrose, glucose and fructose in peel tissue were measured using high-pressure liquid chromatography.’
    • ‘Higher pressures force solvent into the protein matrix, resulting in unfolding through a molten globule state.’
    • ‘When concrete has to be pumped far and fast, a high-capacity / high-pressure concrete pump should be used.’
    • ‘We've removed a fair bit of heat from the refrigerant - it's now a high-pressure liquid at roughly ambient temperature.’
    • ‘During initial acceleration, the high-pressure fluid is released.’
    • ‘The missile is ejected from the submarine by high-pressure gas.’
    • ‘Parish councillors, including Neil Metcalfe, are worried because the site is crossed by a 42 in high pressure gas main.’
    • ‘Here the water is atomised using high-pressure compressed air.’
    • ‘Plasma levels of micronutrients were analyzed by high-pressure liquid chromatography.’
    • ‘A. I'm still convinced the high-pressure solutions are the most credible for at least the first 10 years of the hydrogen economy.’
    • ‘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.’
  • 2Involving a high degree of persuasion.

    ‘high-pressure sales techniques’
    • ‘Today, boiler rooms refer to unregulated companies that use high-pressure selling tactics to peddle dodgy shares by providing false or misleading information.’
    • ‘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.’
    • ‘Doorstep crime includes all aspects of consumer detriment and crime including bogus workmen, high-pressure sales people, bogus officials, and distraction burglary.’
    • ‘The high-pressure sales tactics start and it becomes very difficult to say no.’
    • ‘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.’
    • ‘This means that they will continue to rip us off with high-pressure selling techniques - and even blatant mis-selling.’
    • ‘On the record, he stated that the "application of high pressure is the best way to manipulate Japan."’
    • ‘Against this backdrop, Cincinnati voters distinguished themselves by keeping their cool in the face of a high-pressure campaign to sell the road.’
    • ‘Once called, consumers are subjected to high-pressure selling techniques - and often part with their cash.’
    • ‘It should be a friendly call, not a high-pressure sales job.’
    • ‘Boiler room operators are very experienced in high-pressure selling techniques.’
    • ‘‘All you get is the high-pressure sales pitch to change carriers,’ says Frick, alluding to some telecom solicitations.’
    • ‘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.’
    • ‘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 scams, which are often based in Europe, Asia and the US and involve high-pressure selling techniques, are a common type of investment scam.’
    • ‘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.’
    • ‘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.’
    • ‘Why do time-share sales have to be so high-pressure?’
    • ‘O'Riordan was also concerned about the high-pressure sales techniques of the company and the high cost of the product.’
    • ‘The M.E.N. sent a variety of undercover ‘customers’ into Market Street in Manchester city centre to experience the high-pressure sales tactics.’
    • ‘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.’
    • ‘The main marketing tool it uses is high-pressure direct contact with participants, including phone calls that border on harassment, according to some participants.’
    • ‘There are a lot of high-pressure salespeople about.’
    1. 2.1 Involving a great deal of anxiety or stress.
      ‘a high-pressure job’
      • ‘Admission to a long-term-care facility from a hospital is an important marker for higher pressure ulcer risk.’
      • ‘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.’
      • ‘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.’
      • ‘Human beings have a built-in response system to high-pressure situations.’
      • ‘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.’
      • ‘He also has a good temperament and sense of humor, which help in such a high-pressure role.’
      • ‘Sure, like youive never been in a high-visibility, high-pressure situation and wound up doing something sub-optimal.’
      • ‘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 ".’
      • ‘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.’
      • ‘Due to the high pressure of my project, it seems not feasible to do it soon.’
      • ‘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.’
      • ‘Many teams have survived after players faltered in high-pressure payoff situations.’
      • ‘Stress is something which affects only those who have high-pressure lives.’
      • ‘Mr. Corzine is hardly a stranger to high-pressure situations.’
      • ‘He points out that it becomes very difficult for players to focus on high pressure tournament like the World Cup for too long.’
      • ‘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.’
      • ‘We're a high pressure team, and are at our best when we put pressure on the ball and hunt in packs.’
      • ‘You know, I was under very high pressure since the demo cannot fail.’


high pressure

/ˌhʌɪ ˈprɛʃə/