Pronunciation: /hʌɪpəˈvɛntɪleɪt/
verb
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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
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2 [no object] be or become overexcited: the President was hyperventilating about a minor newspaper story
