Definition of respiration noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌrespəˈreɪʃn//
; NAmE NAmE//ˌrespəˈreɪʃn//
[uncountable] (formal) Cell biology
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the act of breathing Blood pressure and respiration are also recorded. see also artificial respiration See related entries: Cell biology Word Originlate Middle English: from Latin respiratio(n-), from respirare ‘breathe out’, from re- ‘again’ + spirare ‘breathe’.
See the Oxford Advanced American Dictionary entry: respiration

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