respiratory tract

English Thesaurus

1. the passages through which air enters and leaves the body (noun.body)

hypernym	:	tract,
definition	:	a system of body parts that together serve some particular purpose (noun.body)

hyponym	:	lower respiratory tract,
definition	:	the bronchi and lungs (noun.body)

hyponym	:	upper respiratory tract,
definition	:	the nose and throat and trachea (noun.body)

part meronym	:	respiratory system, systema respiratorium,
definition	:	the system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing (noun.body)