s]
. | 1. | a little cavity, pit, or cell, as a cell of a honeycomb. |
| 2. | an air cell of the lungs, formed by the terminal dilation of tiny air passageways. |
| 3. | one of the terminal secretory units of a racemose gland. |
| 4. | the socket within the jawbone in which the root or roots of a tooth are set. |
alveolus al·ve·o·lus (āl-vē'ə-ləs)
n. pl. al·ve·o·li (-lī')
A small angular cavity or pit, such as a tooth socket or an air sac.