Water in or taken from a river.

A barometer in which water is substituted for mercury.

plural of water barometer

plural of water battery

A voltaic battery in which the electrolyte is water. / (military) A battery nearly on a level with the water.

(rare, archaic) Dropsy.

The non-venomous European ringed snake or water snake, Natrix natrix. / The venomous American cottonmouth, Agkistrodon piscivorus. / The non-venomous American northern water snake,Nerodia sipedon

(cosmetics) A colloidal suspension of micelles composed of surfactants in water, used as a cleanser. This usually has a viscosity close to that of water. This has similar uses to other human cleansers, such as liquid detergents (ie. body wash, shampoo) and liquid soaps.

(US) still water

plural of hard water