Respiration

[Sarah]

The act of resping or breathing; the act of taking in andgiving out air; the aggregate of those processes bu which oxygen isintroduced into the system, and carbon dioxide, or carbonic acid,removed.

[Sarah]

Essential life process where oxygen reacts with glucose from the food that you eat to provide your body with energy. The two by-products of this process are carbon dioxide, which is exhaled along with the rest of the harmless gases that entered your lungs but did not diffuse into your blood, and water.
Not to be confused with breathing, which is how the oxygen enters the body.

[Julene]

The action of breathing.