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respiratory system

1 of 1noun
/ˈrɛspərəˌtɔri ˈsɪstəm/
Forms:respiratory systems
1

a biological system that facilitates the exchange of oxygen and carbon dioxide, primarily through the lungs

Learn more on Wikipedia
  • Lungs are part of the respiratory system.
  • The respiratory system helps us breathe.
  • The respiratory system works automatically.
  • Smoking damages the respiratory system.
  • The respiratory system exchanges gases in the body.