Aerious

also aereous (AY-ree-uhs) adjective

Of the nature of air, airy.

[From Latin aereus or aerius, adjectival form of aer, air, + -ous.]

"Aerious science aside, the accompanying signs are often tongue-in-cheek." Seila Hotchkin, Delaware arts center has funny, scary fossils Exhibit, The Des Moines Register, May 14, 2000.