breathing, external respiration, respiration, ventilation - the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation

breathing, eupneic, eupnoeic - 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"