Alveolus (/ælˈvələs/; pl. alveoli, adj. alveolar) is a general anatomical term for a concave cavity or pit.

Uses in anatomy and zoologyEdit

Uses in botany, microbiology and related disciplinesEdit

  • Surface cavities or pits, such as on the stem of Myrmecodia species
  • Pits on honeycombed surfaces such as receptacles of many angiosperms
  • Pits on the fruiting bodies of fungi such as Boletus or the ascocarps of fungi such as typical ascomycetes
  • Pits on the valves of the tests of many diatoms
  • Membrane supporting vesicles of the alveolates

Uses in linguisticsEdit

See alsoEdit