абсолютная влажность(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. WK Alexander Demidov)
водность; влагосодержание(воздуха, т.е. содержание в воздухе воды); водность(облаков, т.е. масса капель воды и кристаллов льда, из которых состоят облака в единичном объёме/массе воздуха)