breathing -
the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation
hyperventilation an increased depth and rate of breathing greater than demanded by the body needs; can cause dizziness and tingling of the fingers and toes and chest pain if continued
second wind the return of relatively easy breathing after initial exhaustion during continuous exertion
Adjective
breathing -
passing or able to pass air in and out of the lungs normally; sometimes used in combination; "the boy was disappointed to find only skeletons instead of living breathing dinosaurs"; "the heavy-breathing person on the telephone"