A‐ë″ri‐al (�), a. [L. aërius. See Air.] 1. Of or pertaining to the air, or atmosphere; inhabiting or frequenting the air; produced by or found in the air; performed in the air; as, aërial regions or currents. “Aërial spirits.” Milton. “Aërial voyages.” Darwin.
2. Consisting of air; resembling, or partaking of the nature of air. Hence: Unsubstantial; unreal.
3. Rising aloft in air; high; lofty; as, aërial spires.
4. Growing, forming, or existing in the air, as opposed to growing or existing in earth or water, or underground; as, aërial rootlets, aërial plants. Gray.
5. Light as air; ethereal.
Aërial acid, carbonic acid. Ure. — Aërial perspective. See Perspective.