the bodily process of inhalation and exhalation; the process of taking in oxygen from inhaled air and releasing carbon dioxide by exhalation: bodily function, sniffle, second wind, abdominal breathing, heaving, body process, periodic breathing, Cheyne-Stokes respiration, snoring, breathing in, hyperpnea, external respiration, eupnoea, exhalation, inspiration, panting, intake, stertor, snivel, bodily process, smoking, wheeze, inhalation, snuffle, snore, respiration, breathing out, eupnea, hypopnea, artificial respiration, ventilation, hyperventilation, expiration, smoke, activity, aspiration deriving oxygen from the air passing or able to pass air in and out of the lungs normally; sometimes used in combination: eupneic, eupnoeic, sweet-breathed
