Alveolus
Pronunciation: /ˈæɫˈviˈoʊˈɛɫˈəs/
Alveolus (noun)
- A tiny air sac in the lungs where oxygen enters the blood and carbon dioxide leaves the blood.
- A small hollow in the jaw bone that holds a tooth root.
Examples
- The alveolus fills with air during breathing.
- Oxygen moves from the alveolus into the blood.