respiratory system

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the system for taking in oxygen and giving off carbon dioxide;
in terrestrial animals this is accomplished by breathing
• Syn:
systema respiratorium
• Hypernyms:
system
• Part Holonyms:
body, organic structure, physical structure
• Part Meronyms:
respiratory tract, airway, respiratory organ, trachea