One of the mysteries of the English language finally explained.
1The action of breathing.‘opiates affect respiration’
- ‘In mammals, external respiration - the ventilation of the lungs - is achieved by breathing, the mechanical basis of respiration: the terms are sometimes used synonymously.’
- ‘Blood pressure and respiration are checked every five minutes, and the patient's temperature also is recorded.’
- ‘Participants were children aged 2-59 months with complaints of cough, rapid respiration, or difficulty in breathing.’
- ‘Every aspect of life depends on muscular activity, whether it be speech, eating and digestion, respiration, all expressions of brain function.’
- ‘The effects of sleep on respiration include changes in central respiratory control, airways resistance, and muscular contractility.’
- 1.1Medicine A single breath.
gulp of air, inhalation, inspirationView synonyms
- ‘In the respiratory form, sinus arrhythmia typically varies with respirations, and the heart rate (RR interval) increases with inspiration and decreases with expiration.’
- ‘Patients should be admitted to the hospital if respirations continue to be labored or their O 2 saturation is less than or equal to 90%.’
- ‘They have noisy respirations, and expiratory stridor is usually present from birth.’
- ‘Before and after each administration of salmeterol or placebo, patients were assessed for heart rate, respirations, and breath sounds.’
- ‘By using opiate analgesics and sedatives to provide comfort to a dying patient, we risk depressing respirations and causing hypotension, which may hasten death.’
- 1.2Biology A process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
- ‘Oxygen free radicals in root cells would be formed in the process of root respiration in the mitochondria and the oxidation of secondary metabolites such as soluble phenols.’
- ‘Temporal relationships between organic carbon production and respiration are not well understood in coral reef ecosystems.’
- ‘Root respiration provides metabolic energy for growth and maintenance of root biomass and for ion transport.’
- ‘First, and most obvious, there is the role of respiration in energy metabolism.’
- ‘Lipids provide material for respiration and energy production, and serve as vitamins, hormones and structural components of biological membranes.’
Late Middle English: from Latin respiratio(n-), from respirare ‘breathe out’ (see respire).
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