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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
Symptoms typically begin about two days after influenza viruses infect a person’s respiratory tract, the CDC said.
—Fernanda Galan, Sacramento Bee, 16 Jan. 2025
But a different kind of sialic acid receptor, alpha 2,6, is more prevalent in the human respiratory tract.
—Cnn.com Wire Service, The Mercury News, 8 Jan. 2025
These changes could have allowed the virus to more easily bind to and enter cells in the human respiratory tract.
—Emily Mullin, WIRED, 7 Jan. 2025
Such antivirals keep the virus from replicating in your respiratory tract.
—Bruce Y. Lee, Forbes, 26 Dec. 2024
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Word History
First Known Use
1842, in the meaning defined above
Time Traveler
The first known use of respiratory tract was
in 1842
Dictionary Entries Near respiratory tract
Cite this Entry
“Respiratory tract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiratory%20tract. Accessed 19 Jan. 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
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