Water content or
moisture content is the quantity of
water contained in a material, such as
soil (called
soil moisture),
rock,
ceramics, fruit, or
wood. Water content is used in a wide range of scientific and technical areas, and is expressed as a ratio, which can range from 0 (completely dry) to the value of the materials'
porosity at saturation. It can be given on a volumetric or mass (gravimetric) basis.