Source : Webster's Revised Unabridged Dictionary (1913)

Aerial \A*["e]"ri*al\, a. [L. a["e]rius. 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, a["e]rial regions or currents.
      ``A["e]rial spirits.'' --Milton. ``A["e]rial 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, a["e]rial spires.

   4. Growing, forming, or existing in the air, as opposed to
      growing or existing in earth or water, or underground; as,
      a["e]rial rootlets, a["e]rial plants. --Gray.

   5. Light as air; ethereal.

   {A["e]rial acid}, carbonic acid. [Obs.] --Ure.

   {A["e]rial perspective}. See {Perspective}.

Source : WordNet®

aerial
     adj 1: in or belonging to the air or operating (for or by means of
            aircraft or elevated cables) in the air; "aerial
            particles"; "small aerial creatures such as
            butterflies"; "aerial warfare"; "aerial photography";
            "aerial cable cars"
     2: growing in air; "aerial roots of a philodendron"
     3: 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: {aeriform}, {airy}, {aery}, {ethereal}]

aerial
     n 1: a pass to a receiver downfield from the passer [syn: {forward
          pass}]
     2: an electrical device that sends or receives radio or
        television signals [syn: {antenna}, {transmitting aerial}]