A standard defining a standardized isotopic composition of water.

by restriction, super-heavy water (T₂O) / by restriction, THO, tritium-protium water (³H¹HO)

Water originating in the form of dew.

plural of water willow

Any of a group of aquatic plants of the Americas in the genus Justicia, with long willow-like leaves and spikes of small purplish flowers. / The flowering plant Decodon verticillatus.

A thin food made of water cooked with a small portion of oatmeal or similar substance, sometimes seasoned with other ingredients.

(hydrology) Water that is not bound to an inorganic surface and can flow freely.

(hydrology) Water that is bound to an inorganic surface.

The potential energy of water per unit volume.

(architecture) An architectural design element involving water, such as a fountain, a pond or a waterfall.