respiratory tract

noun

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

Examples of respiratory tract in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Curcumin suppresses the release of histamines and lowers inflammation in the respiratory tract, which may help reduce symptoms like nasal congestion and sneezing.31 7. Lindsay Curtis, Health, 4 Sep. 2025 The live, weakened versions of the flu virus may generate a stronger immune response in your respiratory tract and thus stronger protection than the dead versions would. Bruce Y. Lee, Forbes.com, 16 Aug. 2025 All vapors exceeded the cancer risk limits for nickel, which has been linked to cardiovascular disease, asthma, lung fibrosis and respiratory tract cancer, per NIH. Ashley J. Dimella, FOXNews.com, 27 June 2025 Measles first infects the respiratory tract, then spreads throughout the body, causing a high fever, runny nose, cough, red, watery eyes and a rash. Devi Shastri, Chicago Tribune, 21 June 2025 See All Example Sentences for respiratory tract

Word History

First Known Use

1842, in the meaning defined above

Time Traveler
The first known use of respiratory tract was in 1842

Browse Nearby Words

Cite this Entry

“Respiratory tract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiratory%20tract. Accessed 21 Sep. 2025.

Medical Definition

respiratory tract

noun
: a system of organs functioning in respiration and in humans consisting especially of the nose, nasal passages, pharynx, larynx, trachea, bronchi, and lungs : respiratory system see lower respiratory tract, upper respiratory tract
Last Updated: - Updated example sentences
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