||Al*ve"o*lus (ăl*vē"?*lŭs),
n.; pl. Alveoli (-lī).
[L., a small hollow or cavity, dim. of alveus: cf. F.
alvéole. See Alveary.] 1. A cell
in a honeycomb.
2. (Zoöl.) A small cavity in a coral,
shell, or fossil
3. (Anat.) A small depression, sac, or
vesicle, as the socket of a tooth, the air cells of the lungs, the ultimate
saccules of glands, etc.