Respiration
WordNet
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
(2) The bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
(3) A single complete act of breathing in and out
"Thirty respirations per minute"
WiktionaryText
Etymology
respiracioun, from respiratio, from respirare.
Noun
- The process of inhaling and exhaling; breathing, breath.
- Any similar process, in organisms that lack lungs, that exchanges gases with its environment.
- The process by which cells obtain chemical energy by the consumption of oxygen and the release of carbon dioxide.