Main entry: respiration, internal respiration, cellular respiration
Definition: 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
Main entry: breathing, ventilation, external respiration, respiration
Definition: the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
Main entry: respiration
Definition: a single complete act of breathing in and out
Usage: thirty respirations per minute