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

All paints and varnishes release fumes that may irritate a pet’s eyes and respiratory tract. —Lucy Notarantonio, MSNBC Newsweek, 5 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

Echinacea plant flowers were initially used medicinally for respiratory tract infections, tooth pain, and snakebites. —Ayesha Gulzar, Verywell Health, 17 Oct. 2025

Acute exposure may cause drowsiness, dizziness and headaches, as well as eye, skin and respiratory tract irritation, and unconsciousness at high levels. —Noelle Phillips, Denver Post, 30 Sep. 2025

Word History

First Known Use

1842, in the meaning defined above

Rhymes for respiratory tract

• abstract
• attacked
• attract
• contact
• contract
• detract
• distract
• enact
• exact
• extract
• hijacked
• impact

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