alveolus

noun

al·ve·o·lus | \al-ˈvē-ə-ləs

plural alveoli\-ˌlī,

-(ˌ)lē \

Definition of alveolus

1 : a small cavity or pit: such as

a : a socket in the jaw for a tooth

b : a small air-containing compartment of the lungs in which the bronchioles terminate and from which respiratory gases are exchanged with the pulmonary capillaries

c : an acinus of a compound gland

d : a cell of a honeycomb

2 : teethridge

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The first known use of alveolus was in 1702

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alveolus

noun

al·ve·o·lus | \al-ˈvē-ə-ləs

plural alveoli\-ˌlī,

-(ˌ)lē

Medical Definition of alveolus

: a small cavity or pit: as

a : a socket in the jaw for a tooth

b : any of the small thin-walled air-containing compartments of the lung that are typically arranged in saclike clusters into which an alveolar duct terminates and from which respiratory gases are exchanged with the pulmonary capillaries

c : an acinus of a compound gland

d : any of the pits in the wall of the stomach into which the glands open