respiratory system


Definition of respiratory system

: a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs : respiratory tract

Illustration of respiratory system

Illustration of respiratory system

respiratory system: 1 nostril, 2 nose, 3 nasal cavity, 4 nasopharynx, 5 oropharynx, 6 larynx, 7 trachea, 8 bronchus, 9 lung

Examples of respiratory system in a Sentence

Recent Examples on the Web Meanwhile, viral tests check samples from the respiratory system by swabbing the inside of the nose to detect SARS-CoV-2, the virus that causes COVID-19, according to the CDC. Mckenzie Sadeghi, USA TODAY, "Fact check: Common cold does not produce positive coronavirus test," 4 July 2020 That goopy cough is your body evicting invaders to keep your respiratory system clean and unobstructed. Matt Simon, Wired, "Your Firework Smoke Could Be Tainted With Lead," 2 July 2020 Wood smoke can further aggravate the respiratory system for people with compromised health conditions, which is to say many COVID-19 patients. Special To The Oregonian/oregonlive, oregonlive, "Tribes enter key wildfire time with coronavirus looming large," 2 July 2020 Some research suggests that ACE2 expression is lower in people with high levels of allergies or allergic asthma, potentially making their respiratory system less vulnerable to viral intrusion. Juliet Isselbacher, STAT, "Does asthma increase Covid-19 risk? Emerging research suggests a complicated connection," 2 July 2020 As though the nose were somehow not a part of the respiratory system. Matt Bean, Sunset Magazine, "I Spent Hours at an Airport and Discovered Just How Terrifying It Is to Fly Now," 18 June 2020 Deaths from or likely from the illness that attacks the respiratory system remained flat during the latest uptick, city data show. Scott Wartman, The Enquirer, "COVID-19 cases surge to highest levels in Greater Cincinnati; leaders urge everyone to wear masks," 24 June 2020 Airborne plastics could also pose significant risks to the human respiratory system, Brahney told the Times. J.d. Simkins, Sunset Magazine, "Airborne Plastic Particles: The Unseen Enemy Ravaging the West’s Protected Lands," 16 June 2020 Emerging evidence suggests that tear gas exposure can have long-term consequences for the respiratory system. Michael Ciaglo, National Geographic, "From tear gas to rubber bullets, here’s what ‘nonlethal’ weapons can do to the body," 5 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'respiratory system.' 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 respiratory system

1811, in the meaning defined above

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Time Traveler for respiratory system

Time Traveler

The first known use of respiratory system was in 1811

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Statistics for respiratory system

Last Updated

10 Jul 2020

Cite this Entry

“Respiratory system.” Dictionary, Merriam-Webster, Accessed 11 Jul. 2020.

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More Definitions for respiratory system

respiratory system


Kids Definition of respiratory system

: a system of the body used in breathing that in human beings consists of the nose, nasal passages, pharynx, larynx, trachea, bronchial tubes, and lungs

respiratory system


Medical Definition of respiratory system

: a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs : respiratory tract

More from Merriam-Webster on respiratory system

Britannica English: Translation of respiratory system for Arabic Speakers Encyclopedia article about respiratory system

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