Source : Webster's Revised Unabridged Dictionary (1913)

Aqueous \A"que*ous\, a. [Cf. F. aqueux, L. aquosus, fr. aqua.
   See {Aqua}, {Aquose}.]
   1. Partaking of the nature of water, or abounding with it;
      watery.

            The aqueous vapor of the air.         --Tyndall.

   2. Made from, or by means of, water.

            An aqueous deposit.                   --Dana.

   {Aqueous extract}, an extract obtained from a vegetable
      substance by steeping it in water.

   {Aqueous humor} (Anat.), one the humors of the eye; a limpid
      fluid, occupying the space between the crystalline lens
      and the cornea. (See {Eye}.)

   {Aqueous rocks} (Geol.), those which are deposited from water
      and lie in strata, as opposed to {volcanic} rocks, which
      are of igneous origin; -- called also {sedimentary} rocks.