Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun alveolus

2 senses of alveolus

Sense 1
alveolus, air sac, air cell -- (a tiny sac for holding air in the lungs; formed by the terminal dilation of tiny air passageways)
       => sac -- (a structure resembling a bag in an animal)

Sense 2
tooth socket, alveolus -- (a bony socket in the alveolar ridge that holds a tooth)
       => socket -- (a bony hollow into which a structure fits)