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respiratory tract

   Also found in: Medical, Wikipedia, Hutchinson 0.01 sec.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.respiratory tract - the passages through which air enters and leaves the body
airway
respiratory system, systema respiratorium - the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing
lower respiratory tract - the bronchi and lungs
upper respiratory tract - the nose and throat and trachea
tract - a system of body parts that together serve some particular purpose
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