respiration respiration /ˌrɛspɝˈeɪʃən/

noun

1. () The metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs  ( cellular respiration , internal respiration , respiration )
   the metabolic processes whereby certain organisms obtain energy from organic molecules; processes that take place in the cells and tissues during which energy is released and carbon dioxide is produced and absorbed by the blood to be transported to the lungs
   
2. The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation  ( external respiration , respiration , ventilation , breathing )
   the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
    The first aid course taught us how to check someone's breathing and perform CPR if necessary
   The first aid course taught us how to check someone's breathing and perform CPR if necessary
   
3. A single complete act of breathing in and out  ( respiration )
   a single complete act of breathing in and out
    Thirty respirations per minute
   thirty respirations per minute