lower respiratory tract

English Thesaurus

1. the bronchi and lungs (noun.body)

hypernym	:	airway, respiratory tract,
definition	:	the passages through which air enters and leaves the body (noun.body)

part holonym	:	lung,
definition	:	either of two saclike respiratory organs in the chest of vertebrates; serves to remove carbon dioxide and provide oxygen to the blood (noun.body)

part holonym	:	bronchial tube, bronchus,
definition	:	either of the two main branches of the trachea (noun.body)

part holonym	:	bronchiole,
definition	:	any of the smallest bronchial ducts; ending in alveoli (noun.body)