resembling environment or obtaining the form of atmosphere
- described as lightness and insubstantiality; as impalpable or intangible as air
- Having the form or nature of environment, or of an elastic liquid; gaseous. Therefore fig.: Unreal.
(a.) Obtaining the kind or nature of environment, or of an elastic substance; gaseous. Thus fig.: Unreal.
They appealed also to the velocity and dilatation of aeriform bodies, to whirlwinds and inflated balloons.