noun🔗ShareA small cavity or pit."The dentist pointed out the tiny alveoli, or pits, in my teeth where plaque was building up. "anatomyorganbodyphysiologyChat with AIVocabulary GamePractice Reading
noun🔗ShareAn anatomical structure that has the form of a hollow cavity, as:"The lungs contain millions of tiny air sacs called alveoli, where oxygen enters the bloodstream. "anatomyorganphysiologymedicinebodybiologystructureChat with AIVocabulary GamePractice Reading
