Definition of airtight in US English:



  • 1Not allowing air to escape or pass through.

    • ‘The basic idea is to make an effectively airtight wall by sealing the exterior sheathing and the interior wall finish to the framing.’
    • ‘When applied directly onto the trailer bed, the linings form a permanent airtight and watertight seal that prevents rust and corrosion.’
    • ‘The treated grain (which is still looks like whole grain) is pitted and sealed in an airtight clamp.’
    • ‘This completely enclosed the peltier in an airtight seal.’
    • ‘The foil is there largely for aesthetic reasons since the cork should provide an airtight seal and only a faulty one will allow any seepage of wine.’
    • ‘Allow to cool slightly before storing in an airtight container or zip lock bag.’
    • ‘A baby is placed inside a clear acrylic box, resembling an incubator, which creates an airtight seal around its chest.’
    • ‘A small airtight box divided into sections with strips of cardboard is ideal.’
    • ‘Because tubeless tires need to form an airtight seal, manufacturers must coat the inner walls of the tire with additional rubber.’
    • ‘The specimens were then wrapped in gauze soaked in normal saline solution, sealed in an airtight bag, and frozen until the time of testing.’
    • ‘The lightweight housing is made of magnesium alloy and is airtight, dustproof, waterproof and fully nitrogen purged.’
    • ‘A small amount of sugar is added to the bottle before sealing it airtight.’
    • ‘Most modern stoves are airtight and allow the amount of combustion air that feeds the flame to be controlled.’
    • ‘It seemed as if we were a can of sardines sealed in an airtight container.’
    • ‘In the meantime, practice good sanitation, keeping counters and floors clean and sealing food in airtight containers.’
    • ‘This means that coffee should be packed in an airtight foil laminated bag with a one-way air valve to allow the bag to de-gas.’
    • ‘The suitcases are sealed airtight and have huge orange labels attached to them.’
    • ‘She even sends them in an airtight bag to seal in freshness.’
    • ‘It's hygienic, versatile, waterproof, airtight, cheap and of course durable.’
    • ‘For tubeless tires, it allows the bead to seat easier and helps form an airtight seal.’
    sealed, closed, shut tight, tight, impermeable, hermetically sealed
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    1. 1.1 Having no weaknesses; unassailable.
      ‘Scamp had an airtight alibi’
      • ‘The case against flying is not so airtight.’
      • ‘Build an airtight business case for new IT investments.’
      • ‘The case against the ex-deacon was airtight’
      • ‘You cannot have airtight, foolproof countermeasures that would prevent incidents of kidnapping like this.’
      • ‘The defense no longer was airtight.’
      • ‘And the case we had against them was airtight.’
      • ‘The government has an airtight case and was definitely not behind the explosion.’
      • ‘Illingworth siblings do not exude that air; certainly Duke has motives for crime, though his alibi seems airtight.’
      • ‘The legislators in Hawaii had thought of that before I did and the law was airtight.’
      • ‘The band, as could be expected for one that toured so much, was airtight in their performance, almost to the point of seeming robotic.’
      • ‘The reason they did not try them is Hunter wanted an airtight case.’
      • ‘The Rockefeller interests were not in crisis, however: his monopoly was airtight.’
      • ‘The secrecy was airtight.’
      • ‘Well, my part in the whole mess was to stay up all night and research so our case was airtight when we went before the district court.’
      • ‘They needed to provide key corporate information to remote users, but in a way that was airtight in its security.’
      • ‘Gays and lesbians will most likely be able to wed legally soon in Massachusetts following a landmark same-sex marriage ruling by the state's top court that experts said is airtight -- at least for now.’
      • ‘Their [Chevron's] IP portfolio of roughly 5,000 active records was airtight’
      • ‘He had pulled off a big score recently, and with an airtight alibi he'd actually paid a couple of women to accompany him to Ibiza for a wild week while the heat died down.’
      • ‘The circle closed, and the irony was airtight.’
      • ‘Military officials insist their case for attacking the operation was airtight’
      indisputable, unquestionable, incontrovertible, undeniable, incontestable, irrefutable, unassailable, beyond dispute, beyond question, beyond doubt
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