Dictionary

external respiration

noun

Definition of EXTERNAL RESPIRATION

:  exchange of gases between the external environment and a distributing system of the animal body (as the lungs of higher vertebrates or the tracheal tubes of insects) or between the alveoli of the lungs and the blood — compare internal respiration
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First Known Use of EXTERNAL RESPIRATION

1940
Medical Dictionary

external respiration

noun

Medical Definition of EXTERNAL RESPIRATION

:  exchange of gases between the external environment and a distributing system of the animal body (as the lungs of higher vertebrates or the tracheal tubes of insects) or between the alveoli of the lungs and the blood—compare internal respiration

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