respiratory tract

noun

plural respiratory tracts
: the respiratory system especially with regard to its form as a continuous passage for moving air into and out of the lungs see lower respiratory tract, upper respiratory tract

Examples of respiratory tract in a Sentence

Recent Examples on the Web
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Simulation models also revealed that the particles tend to accumulate in the alveolar region of the lungs, the deepest part of the respiratory tract. Daniella Gray, MSNBC Newsweek, 9 Dec. 2025 Cough and Nasal Congestion Can Improve Chicken noodle soup may help relieve respiratory tract infection symptoms like cough, sore throat, and nasal congestion. Joy Emeh, Health, 4 Dec. 2025 It is well established that antibiotics do not shorten the duration or reduce the severity of respiratory tract infections. Mary J. Scourboutakos, The Conversation, 14 Nov. 2025 The researchers used human lung epithelial cells, which line the respiratory tract and serve as a defense against inhaled pathogens and particles. New Atlas, 25 Oct. 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

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Cite this Entry

“Respiratory tract.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/respiratory%20tract. Accessed 14 Dec. 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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