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respiration Definition
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respiration
noun(res-pi-ra-tion)the movement of air or dissolved gases into and out of the lungs
respiration
noun(res-pi-ra-tion)a single complete act of breathing
respiration
noun(res-pi-ra-tion)the physical and chemical processes (such as breathing and diffusion) by which an organism supplies its cells and tissues with the oxygen needed for metabolism and relieves them of the carbon dioxide formed in energy-producing reactions
respiration
noun(res-pi-ra-tion)the rhythmic forcing of air into and out of the lungs of a person whose breathing has stopped
respiration
noun(res-pi-ra-tion)any of various energy-yielding oxidative reactions in living matter that typically involve transfer of oxygen and production of carbon dioxide and water as end products
respiration
noun(res-pi-ra-tion)exchange of gases between the external environment and a distributing system of the animal body (such as the lungs of higher vertebrates or the tracheal tubes of insects) or between the alveoli of the lungs and the blood
respiration
noun(res-pi-ra-tion)an exchange of gases between the cells of the body and the blood by way of the fluid bathing the cells