aeriform
adj 1: resembling air or having the form of air [syn: airlike]
2: characterized by lightness and insubstantiality; as
impalpable or intangible as air; "figures light and
aeriform come unlooked for and melt away"- Thomas Carlyle;
"aerial fancies"; "an airy apparition"; "physical rather
than ethereal forms" [syn: aerial, airy, aery, ethereal]