Alveolus: Definition with Alveolus Pictures and Photos

1. Noun. A tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways.

Exact synonyms: Air Cell, Air Sac
Group relationships: Lung
Generic synonyms: Sac
Derivative terms: Alveolate

2. Noun. A bony socket in the alveolar ridge that holds a tooth.

Exact synonyms: Tooth Socket
Generic synonyms: Socket
Group relationships: Alveolar Process, Alveolar Ridge, Gum Ridge

1. n. A cell in a honeycomb.

1. Noun. A small cavity or pit. ¹

2. Noun. (anatomy) an anatomical structure that has the form of a hollow cavity ¹

3. Noun. (anatomy) a small air sac in the lungs, where oxygen and carbon dioxide are exchanged with the blood. ¹

¹ Source: wiktionary.com

1. a small anatomical cavity [n -LI]

1. A small cell containing air in the lungs, a sac-like dilation of the alveolar ducts in the lung (plural: alveoli) (27 Sep 1997)

Lexic.us