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

Keep scrolling for more

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 Recent work has found, for instance, that two-thirds of the brain is involved in simple eye movements; meanwhile, half of the brain gets activated during respiration. Quanta Magazine, 24 Aug. 2021 The researchers noticed when the hermit crabs dedicated the same chemical, their respiration rates increased, indicating excitement and attraction. Jordan Mendoza, USA TODAY, 10 Aug. 2021 The agency also granted a marketing clearance to a tool developed LifeSignals that helps clinicians monitor patients at home by tracking their heart rate, respiration rate, body posture and other signals. Stat Staff, STAT, 1 Aug. 2021 Moderate intensity is anything that gets your heart pumping and increases your respiration rate. Katia Hetter And Sandee Lamotte, CNN, 4 June 2021 Apple also notes in the patent that the technology can detect force touch, or read other biometric characteristics, like a heart rate or respiration rate. Chris Smith, BGR, 10 Apr. 2018 But root respiration tends to track growth, giving a snapshot. Arkansas Online, 6 July 2021 The bacteria then delivered their electrons to the compounds during respiration, creating MoS2 nanoparticles as a by-product over the course of two weeks. Karen Kwon, Scientific American, 20 Oct. 2020 The device measures heart rate, heart variability, respiration rate, and body temperature at night. Chris Smith, BGR, 7 July 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.

See More

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

Keep scrolling for more

Learn More About respiration

Time Traveler for respiration

Time Traveler

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

See more words from the same century

Dictionary Entries Near respiration

respirating

respiration

respirational

See More Nearby Entries 

Statistics for respiration

Last Updated

3 Sep 2021

Cite this Entry

“Respiration.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiration. Accessed 23 Sep. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for respiration

respiration

noun

English Language Learners Definition of respiration

: 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

WORD OF THE DAY

Test Your Vocabulary

Farm Idioms Quiz

  • cow coming home
  • What does 'poke' refer to in the expression 'pig in a poke'?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!