- a small cavity or hollow, as a cell of a honeycomb, air cell of a lung, tooth socket, etc.
- [usually pl.] the alveolar ridge; teethridge
Origin of alveolusL, diminutive of alveus, a hollow, cavity from alvus, the belly, womb from Indo-European base an unverified form au-lo-s from source Classical Greek aulos, flute, Lithuanian aul?s, beehive
- A small angular cavity or pit, such as a honeycomb cell.
- A tooth socket in the jawbone.
- A tiny, thin-walled, capillary-rich sac in the lungs where the exchange of oxygen and carbon dioxide takes place. Also called air sac .
Origin of alveolusLatin small hollow diminutive of alveus a hollow from alvus belly