Definition of hyperventilate in English:



  • 1Breathe or cause to breathe at an abnormally rapid rate, so increasing the rate of loss of carbon dioxide.

    no object ‘she started to hyperventilate under stress’
    with object ‘the patients were hyperventilated for two minutes’
    • ‘Her breathing sounded more like hyperventilating as she paced back and forth.’
    • ‘So does that mean you become light headed and silly, or faint, as you would if you hyperventilated at sea level?’
    • ‘She immediately began panicking, hyperventilating into her breath mask as she floated in the water tank, pushing against the glass walls.’
    • ‘I crawled away and knelt on the deck, trying to slow my breathing before I hyperventilated.’
    • ‘Taking deep breaths she began to hyperventilate, but in a more discreet way.’
    • ‘Subjects may hyperventilate for several minutes before diving to increase underwater time.’
    • ‘Her mouth moved opened and closed with each breath, coming in such rapid fire that she was sure she would hyperventilate any second.’
    • ‘This compensation is usually excellent, as most asthmatics hyperventilate during an episode of wheezing with dyspnea.’
    • ‘In times of extreme stress, people may shake uncontrollably, hyperventilate (breathe faster and deeper than normal) or even vomit.’
    • ‘This will cause a certain subset of the population to begin hyperventilating and breathing into paper bags.’
    • ‘Patients can reproduce these spells by hyperventilating in a controlled environment.’
    • ‘These changes contribute to the high anion gap that hyperventilating patients may demonstrate, as observed initially in this patient.’
    • ‘She began vomiting, hyperventilating, and convulsing.’
    • ‘The subject was then switched to a rebreathing bag and was asked to stop hyperventilating.’
    • ‘He then began to hyperventilate and allegedly fainted and hit the car in front of him.’
    • ‘It's the silly, hyperventilating category of ‘pre-hypertension’ that we're ignoring.’
    • ‘I started to hyperventilate and couldn't breathe.’
    • ‘I recognised him and tried to say something but just ended up shuddering and gasping breaths, hyperventilating.’
    • ‘I'm going to start hyperventilating any minute now.’
    • ‘To find out if you over-breathe or hyperventilate the device includes a procedure for measuring your volume of lung ventilation.’
    affected, ostentatious, chichi, showy, flashy, tinselly, conspicuous, flaunty, tasteless, kitschy
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  • 2no object Be or become overexcited.

    ‘the President was hyperventilating about a minor newspaper story’