Definition of "alveoli" [alveoli]

  • Plural form of alveolus. (noun)

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Use "alveoli" in a sentence
  • "Within alveoli, oxygen from inhaled air is absorbed into the bloodstream in exchange for carbon dioxide waste that is exhaled."
  • "At the end of each bronchiole are tiny sacs called alveoli, each one of them lined with a thin layer of fluid that keeps each alveolus open."
  • "The lungs contain tiny air sacs known as alveoli and bronchioles, the narrow passages leading to the air sacs which become permanently distended with air under this condition."