Definition of air cell in English:

air cell

Pronunciation /ˈɛː sɛl/

noun

  • 1Zoology Anatomy
    A specialized air-filled cavity within the body.

  • 2Botany
    An intercellular space in the tissue (especially the stem) of a plant; an air cavity.

  • 3An air-filled compartment or cavity in a manufactured article or natural substance.

Origin

Late 18th century; earliest use found in Philosophical Transactions of the Royal Society of London. From air + cell.