aeriform

Definitions

Having the form or nature of air; gaseous.

Lacking substance or material form; ethereal or intangible.

Examples

The scientist observed the aeriform substance as it drifted slowly through the laboratory chamber.

Clouds are essentially aeriform masses of water vapor suspended in the atmosphere.

Synonyms

gaseous airy ethereal vaporous intangible gassy pneumatic

Antonyms

solid dense substantial tangible corporeal material concrete