respiration

noun
res·​pi·​ra·​tion | \ ˌre-spə-ˈrā-shən How to pronounce respiration (audio) \

Definition of respiration

1a : the movement of air or dissolved gases into and out of the lungs
b : a single complete act of breathing … the patient was cyanotic and unconscious with labored respirations at 40/min.— Dorwyn W. Croom
2 : the physical and chemical processes (such as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy-producing reactions

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Other Words from respiration

respiratory \ ˈre-​sp(ə-​)rə-​ˌtȯr-​ē How to pronounce respiration (audio) , ri-​ˈspī-​rə-​ \ adjective

Examples of respiration in a Sentence

The doctor checked his heartbeat and respiration.
Recent Examples on the Web The device measures heart rate, heart variability, respiration rate, and body temperature at night. Chris Smith, BGR, 7 July 2021 Overheating causes animals to stop eating and increases their heart and respiration rate. Arkansas Online, 21 June 2021 Proteins, lipids, sugars and other molecules follow specific steps to sustain the energy needs, respiration and reproduction of life. Scientific American, 8 July 2012 The suitcase-size device can detect human respiration and heartbeats and was being deployed Sunday by a seven-member search-and-rescue team from Mexico’s Jewish community. Terry Spencer And Russ Bynum, chicagotribune.com, 28 June 2021 The suitcase-size device can detect human respiration and heartbeats and was being deployed Sunday by a seven-member search-and-rescue team from Mexico’s Jewish community. Terry Spencer And Russ Bynum, Chron, 28 June 2021 Indeed, the metabolic process of respiration, which supplies oxygen to all the tissues of the body and removes carbon dioxide, is involuntary. Dana Santas, CNN, 16 June 2021 Even so, their heart rates and respiration generally rose enough for those commutes to qualify as moderate exercise, based on standard physiological benchmarks, the scientists decided, and should, over time, contribute to health and fitness. Gretchen Reynolds, Star Tribune, 11 June 2021 The degenerative condition affects muscle movement and respiration. Bethany Hines, CNN, 30 Apr. 2021

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'respiration.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of respiration

15th century, in the meaning defined at sense 1a

History and Etymology for respiration

Middle English respiracioun, from Latin respiration-, respiratio, from respirare

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Learn More About respiration

Time Traveler for respiration

Time Traveler

The first known use of respiration was in the 15th century

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Statistics for respiration

Last Updated

17 Jul 2021

Cite this Entry

“Respiration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiration. Accessed 26 Jul. 2021.

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More Definitions for respiration

respiration

noun

English Language Learners Definition of respiration

medical : the act or process of breathing

respiration

noun
res·​pi·​ra·​tion | \ ˌre-spə-ˈrā-shən How to pronounce respiration (audio) \

Kids Definition of respiration

1 : the act or process of breathing : the inhaling of oxygen and the exhaling of carbon dioxide
2 : the process by which cells use oxygen to break down sugar and obtain energy

respiration

noun
res·​pi·​ra·​tion | \ ˌres-pə-ˈrā-shən How to pronounce respiration (audio) \

Medical Definition of respiration

1a : the movement of respiratory gases (as oxygen and carbon dioxide) into and out of the lungs
b : a single complete act of breathing 30 respirations per minute
2 : the physical and chemical processes (as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy-producing reactions

More from Merriam-Webster on respiration

Nglish: Translation of respiration for Spanish Speakers

Britannica English: Translation of respiration for Arabic Speakers

Britannica.com: Encyclopedia article about respiration

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