The system for taking in oxygen and giving off carbon dioxide; in terrestrial animals this is accomplished by breathing.  Synonym: systema respiratorium.
 
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"Respiratory system" Quotes from Famous Books — Special Report on Diseases of the Horse • United States Department of Agriculture  | 
Words linked to "Respiratory system" :   respiratory tract, organic structure, airway, respiratory organ, trachea, body, physical structure, system, systema respiratorium  | 
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