Definition of aeriform in English:

aeriform

adjective

  • 1historical
    Of the form or nature of a gas; gaseous. Now chiefly historical.

  • 2figurative
    Figurative. Insubstantial, intangible, unreal.

Origin

Late 18th century; earliest use found in Richard Kirwan (1733–1812), chemist and mineralogist. From classical Latin āēr air + -iform, after French aériforme. Compare Italian aeriforme.

Pronunciation:

aeriform

/ˈɛːrɪfɔːm/