noun
: the exchange of gases (as oxygen and carbon dioxide) between the cells of the body and the blood by way of the fluid bathing the cells — distinguished from external respiration
noun
: the exchange of gases (as oxygen and carbon dioxide) between the cells of the body and the blood by way of the fluid bathing the cells — distinguished from external respiration
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012