Definition: Non-hygroscopic, also known as a hydrophilic substance, is a type of material that does not easily absorb water. It has a high surface area and low density, which means it can hold large amounts of water without getting saturated or wet. Examples of non-hygroscopic materials include plastics, glass, paper, and metals. Non-hydrophilic substances are typically found in the environment as a result of natural processes such as precipitation, evaporation, and condensation.