noun
external respiration
Biology/physiology term for the exchange of gases between an organism and its environment, often contrasted with 内呼吸 (internal respiration).
See also: 内呼吸
肺は外呼吸を担う器官である。
The lungs are organs responsible for external respiration.
生物学の授業で外呼吸と内呼吸の違い
In biology class, we learned the difference between external respiration and internal respiration.