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Definition of altitude sickness noun from the Oxford Advanced Learner's Dictionary

altitude sickness

noun

/ˈæltɪtjuːd sɪknəs/

/ˈæltɪtuːd sɪknəs/

[uncountable]

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illness caused by a lack of oxygen, because of being very high above sea level, for example on a mountain

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See altitude sickness in the Oxford Advanced American Dictionary

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Nearby words

adverb

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