The Collaborative International Dictionary of English v.0.48:
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;
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.